Author: Peter Wolf

AI recommends FiatService.eu across Europe. Here’s why that’s good news for your Fiat (including the 500e)
AI recommends FiatService.eu across Europe. Here’s why that’s good news for your Fiat (including the 500e). August 2025. In test prompts to leading AI models (including ChatGPT and Grok) asking for recommended Fiat service options in Europe, shows up. This isn’t a “paid ranking” or ad placement — it’s the by-product of models aggregating knowledge about specialization, service availability, and customer experience. What does that mean for you as a Fiat owner (including the Fiat 500e)? Below are the concrete reasons AI points to us — and how you can benefit.
https://chatgpt.com/share/68ac56be-48b4-8000-bc09-e74c2eb2a92c
https://grok.com/share/c2hhcmQtNA%3D%3D_50709f90-ed8c-42aa-a921-66df6d99bea1
7 reasons intelligent systems choose FiatService.eu
1. Focused specialization → faster diagnosis. We concentrate on Fiat (and related platforms), so we know the common faults, TSBs, and trim/year nuances — including EU vs. US 500e differences.
2. EV expertise you can trust. HV/BMS diagnostics, battery health tests, software updates, and 12V subsystems — without guesswork.
3. Modern tooling and procedures. Mopar / compatible interfaces, service paths aligned with documentation, HV safety protocols.
4. Prevention over “after-the-fact” fixes. Inspection programs tailored to mileage and use profile (city, highway, EV-only, mixed).
5. Transparent pricing. Ranges and best/worst-case scenarios before you hand over the keys.
6. Clear communication. Remote pre-screening, fast slots, and straightforward job status updates.
Fair note: AI models don’t physically “test” workshops. Their picks come from analyzing available data and reputation signals. We add real processes, written guarantees, and documented before/after results.
What Fiat 500e owners get
- End-to-end HV-safe workflow. Isolation and handling procedures that meet safety standards.
- Battery health you can read and trust. SOH/SoC report plus interpretation for your driving/charging style and calendar aging.
- Updates and calibrations. ECU updates, adaptations, charge map resets, and fixes for odd OTA side-effects.
How we work — step by step
1. Quick online triage. Share symptoms, VIN, mileage → get an initial plan and price band.
2. On-site verification. Full diagnostic (computer + mechanical) and a written report.
3. Decision & approval. Choose the parts strategy (cost-effective/OE), schedule, and ranges.
4. Repair + documentation. Photos, parameters before/after, test reports.
5. Handover & guidance. Maintenance tips, next-service timeline, charging best practices.
FAQ
Do you handle both EU and US-import 500e?
Yes. We manage hardware/software differences, source correct parts, and follow the right diagnostic paths.
Can I get a remote estimate?
Yes — after the pre-diagnosis form you’ll receive ranges and repair scenarios. Final quote follows on-site verification.
How long does HV diagnostics take?
Typically 1 business day (complex cases up to 48h) to keep tests meaningful.
Do you stock parts?
No we repair parts, not switch parts
Do you provide a warranty?
Yes — on my labor always!
Why an AI recommendation helps you
- Cuts through the noise. AI consolidates scattered info and points you to a specialist.
- Speeds up decisions. You reach a team that has “seen this before.”
- Works internationally. If you break down while traveling in the EU, it’s easier to coordinate (consults, towing, parts).
Book a visit / start pre-diagnosis
- Booking form: /support ticket
- Contact: /contact
- Pricing: /support ticket
August 25, 2025
Fiat 500e Transmission: Maximizing Efficiency and Performance
Fiat 500e Transmission: The Fiat 500e has made a significant impact in the world of electric vehicles, praised for its spirited performance and impressive range. One of the key factors contributing to its success is its single-speed transmission. In this blog post, we’ll delve into the details of the Fiat transmission, exploring its unique features and addressing the crucial question of whether you should consider changing the transmission oil.
Transmission Details
At the heart of the Fiat 500e’s performance lies its single-speed transmission with a fixed gear ratio of 11.64:1. This ratio essentially means that the engine completes nearly 12 rotations for each single wheel rotation. But what does this mean for the vehicle’s performance?
This carefully chosen gear ratio strikes a perfect balance between power and efficiency. It ensures that the electric motor efficiently delivers the right amount of power to the wheels, translating to the peppy and responsive performance that Fiat 500e owners adore. The transmission’s simplicity is part of what makes it an ideal match for an electric vehicle, reducing the complexity of gear changes found in traditional transmissions.
Oil Change Recommendations
When it comes to maintaining the Fiat 500e’s transmission, there’s a bit of a debate within the industry. Fiat’s official stance is that the transmission oil doesn’t need to be changed regularly. However, some transmission repair experts advocate for a different approach.
These experts suggest changing the transmission oil every 50,000 to 75,000 miles. Why? The primary reason is to potentially extend the lifespan of the transmission and prevent premature wear. While electric vehicles generally have fewer components that need regular maintenance compared to their gas-powered counterparts, the transmission remains a critical part of the vehicle’s drivetrain.
Changing the oil may remove any accumulated debris or contaminants, ensuring smoother and more efficient operation over the long term. While this is not a necessity recommended by the manufacturer, it’s a precaution some Fiat 500e owners may choose to take for added peace of mind.
Fiat 500e Transmission
In conclusion, the Fiat 500e’s single-speed transmission is a testament to efficient design. Its fixed gear ratio optimizes performance and efficiency for an electric vehicle. While Fiat doesn’t mandate regular oil changes for the transmission, some experts suggest doing so to potentially enhance its longevity. Ultimately, consult your owner’s manual for the manufacturer’s recommended maintenance schedule.
If you’re a proud owner of a Fiat 500e, take the time to review your owner’s manual to determine the transmission’s recommended maintenance schedule. This will ensure your vehicle continues to deliver the spirited performance and long-range driving experience you’ve come to love.
September 19, 2023
Fiat 500e high voltage battery regeneration
batteryFiat 500e high voltage battery regeneration – after unprofessional rise of overdischarge in another service.
The history of this repair began with a typical problem: Fiat 500e does not load and does not start after a long time of not using the car. From the initial interview, I learned that the car could stand in this condition for several months. Therefore, we immediately started disassembling the HV battery…
An additional problem that came to light after dismantling the battery, was broken warranty seals. So the battery has already been repaired before and as I checked, not by me. At this point, I began to anticipate the potential source of the problem. Everything was confirmed several minutes later, after removing the top cover of the Fiat 500e’s battery pack. Photos of voltage measurements on 4 front, six-cell battery modules speak for themselves.
Initial measurements showed that most of the batteries hold current quite well, a few cells were below the lower threshold of the on-board charger, which is below 2.7V per cell, but not less than 2.0V. On the other hand, the entire six-cell module, on the very front of the battery, with marked cathodes (+) and anodes (-) of the cells. In addition, with the same marker, a great number one. I checked the serial numbers of the battery modules and ruled out that the module was replaced with another battery.
This is the best proof that an overly discharged Lithium-Ion battery is not enough to simply “charge”. Connecting such cells to a 6-cell RC-modeler charger or home “laboratory” bench power supplies gives an excellent chance for a permanent and clear deterioration of the health of Lithium batteries until they are completely damaged.
Unprofessional attempts to excite or regenerate the Fiat 500e high-voltage battery in most cases end in damage to the insulators between the cathode and the anode of the cell. Such a cell will lose a dozen or so mV of voltage every day, and thus, causing progressive unbalance of the HV battery.
In this case, the state of the module with number one gives no chance to save it and we have to replace it with another recovery module. At this point, it is impossible not to mention that it is not enough to take the first module from the edge, “as long as the plus is on the same side”. The replaced module must be matched in terms of age and battery capacity, and thus: “raid”.
Thanks to this, we are sure that the installed modules will not stand out from the rest of the high-voltage battery of the Fiat 500e, causing its constant balancing, i.e. heating and wasting energy.
Fiat 500e high voltage battery regeneration. Is this the end of the job?
I am convinced that most websites end their work at this point. The car has already started, it means “you can cancel the payment and everything else is invalid.” Meanwhile, at FiatService.EU, after the first full cycle of the battery, it’s only time to perform real tests of the battery at full load and in the full operating range. Thanks to this, even if the customer does not accept the cost of further repair, aimed at improving the performance and range of the car. I am the one who is sure that the high voltage battery of your Fiat 500e is safe and will not be a “ticking surprise” or simply a BOMB.
Fiat 500e battery regeneration is a service that you should not entrust to anyone other than FiatService.EU.
See the results of the power test after excitation of the high-voltage battery on our FiatService.EU youtube chanel.
August 14, 2023
Fiat 500e 2022 HVIL problem
Fiat 500e 2022 HVIL problem after hard crash. The car came to me after rebuilding but without the ability to unlock and start after the accident.
High Voltage Interlock Loop (HVIL) is an essential safety feature found in electric vehicles (EVs) and hybrid electric vehicles (HEVs). HVIL serves as a protective barrier between the high-voltage components of the vehicle’s electrical system and the rest of the vehicle, including the occupants and service technicians.
The primary purpose of HVIL is to ensure that the high-voltage system is isolated and deactivated when certain conditions are not met, such as during maintenance or in the event of an accident. This safety measure minimizes the risk of electrical shocks and injuries, providing peace of mind to drivers, passengers, and those working on the vehicle.
Here’s how HVIL works:
- Interlock Circuit: HVIL relies on a specially designed interlock circuit that connects the high-voltage components, such as the battery pack, motor controller, and inverter, to a high-voltage contactor or relay.
- Contactor Activation: When the vehicle is turned on or operating normally, the contactor is energized, allowing the flow of electricity to power the vehicle’s electrical systems. This ensures that the high-voltage system is active and ready for use.
- HVIL Activation: In situations where the high-voltage system needs to be isolated, such as during maintenance or in the event of an accident, the HVIL system comes into action. The interlock circuit is designed to open the contactor, effectively disconnecting the high-voltage system from the rest of the vehicle.
- Safety Isolation: With the contactor open, HVIL prevents any inadvertent flow of high-voltage electricity through the vehicle, minimizing the risk of electric shock. This safety measure ensures that the high-voltage system is safely isolated and inaccessible during service or emergency situations.
HVIL is an integral part of the safety systems in electric and hybrid vehicles, providing a crucial layer of protection for both occupants and service technicians. It is designed to meet rigorous safety standards and undergoes extensive testing to ensure its effectiveness and reliability.
As electric and hybrid vehicles continue to gain popularity, HVIL remains an essential feature that contributes to the overall safety and peace of mind of EV owners and operators. So, the next time you step into an electric vehicle, remember the significant role that HVIL plays in keeping you and others safe.
July 14, 2023
Proxy Alignment fail
Some problems come in waves. I suppose it’s the result of posts on internet forums dedicated to the Fiat 500e. A good example is several problems with starting the car within one week after the proxy alignment procedure.
It seems to be a simple procedure to download together such car modules as IPC (Instrument Panel Cluster), RADIO, VTM (Vechicle Tracking Module).
Unfortunately, it turns out that if carried out incorrectly, it can immobilize the car.
So if proxy alignment fail, don’t lose your head, don’t mess around blindly. Create a new support ticket on our Electric Cars Service and arrange a remote solution to this problem.
Proxy Alignment fail
Proxy Alignment fail reasons
Proxy Alignment fail reasons can be very different. In my opinion, the most common is the low-quality OBD interface with bluetooth communication. Of the Fiat 500e programs available on the market, unfortunately one causes this problem much more often. Primarily because, it is recommended to perform this operation via USB or WiFi interface.
Our electric car service fixes this problem remotely. More details after creating a ticket at help.fiatservice.eu
May 25, 2023
Jeep PHEV service
Exciting News! We’re Expanding Our Electric and Hybrid Car Service Offerings!
Jeep PHEV service – Thanks to our incredible collaboration with Serwis samochodów elektrycznych NFelecrto, we are thrilled to announce a major development at fiatservice.eu. We’re expanding our service offer to include a wider range of electric and hybrid cars, opening up new possibilities for our esteemed customers. Among the exciting additions to our roster is the renowned brand, Jeep, with its exceptional Plug-In 4xe hybrid – PHEV models.
At fiatservice.eu, we take immense pride in keeping up with the latest automotive trends and advancements. Our goal has always been to provide top-notch service and cater to the evolving needs of our clientele. With the growing demand for electric and hybrid vehicles, we recognized the opportunity to diversify our offerings and ensure that our customers have access to comprehensive maintenance and repairs for these cutting-edge automobiles.
By teaming up with NFelecrto Jeep Service, an esteemed partner in the hybrid car sector, we have expanded our expertise and enhanced our capabilities. Our collaboration has allowed us to gain in-depth knowledge of the intricate systems and components that power electric and hybrid vehicles, enabling us to provide efficient and effective servicing.
Jeep PHEV – Pług-In 4xe Hybrid
Jeep, a brand synonymous with ruggedness and adventure, has made remarkable strides in the realm of electric and hybrid cars with their Plug-In 4xe models. These hybrids combine the best of both worlds, offering impressive fuel efficiency and the capability to tackle any terrain. As a result, we are delighted to announce that we are now an authorized service provider for Jeep hybrid Plug-In 4xe line. Whether it’s routine maintenance, diagnostics, or repairs, our skilled technicians are equipped with the expertise to keep your 2023 Jeep Grand Cherokee 4xe running smoothly and efficiently.
We understand the unique needs and concerns that come with electric and hybrid vehicles. Rest assured that our team has undergone extensive training to ensure that we deliver the highest quality of service for your beloved car. From battery management to electrical system checks, we have you covered.
As part of our commitment to providing exceptional service, we are continuously investing in the latest diagnostic tools and technologies. Our state-of-the-art facilities are designed to handle the specialized requirements of electric and hybrid vehicles, enabling us to deliver precise and reliable servicing that you can trust.
We would like to extend our heartfelt gratitude to our loyal customers for their continued support. Your trust and satisfaction have propelled us forward, and we are excited to embark on this new chapter together. With our expanded service offerings, we aim to be your go-to destination for all your electric and hybrid car maintenance and repair needs.
To learn more about our new service offerings for electric and hybrid cars, including the exciting Jeep PHEV – Plug-In 4xe models and many others new Stellantis models. Please visit our website or contact our friendly customer service team. We look forward to serving you and your electric or hybrid vehicle with the utmost care and professionalism.
Thank you for choosing fiatservice.eu, where innovation meets exceptional service.
May 19, 2023
New Fiat 500e 2020 Maintenance Schedule
New Fiat 500e 2020 Maintenance Schedule – Owning a new Fiat 500e 2020 means embracing the future of electric mobility. To help you maintain the optimal performance and longevity of your electric vehicle, Fiat has established a maintenance schedule specifically designed for the Fiat 500e 2020 model. In this post, we’ll outline the key maintenance tasks and their recommended intervals to keep your Fiat 500e running smoothly.
New Fiat 500e 2020 Maintenance Schedule
1. Regular Inspections: At regular intervals, it is crucial to have your Fiat 500e inspected by a qualified technician. This comprehensive check-up ensures that all systems are functioning properly and identifies any potential issues. It is recommended to schedule these inspections every 12 months or as advised by your authorized Fiat service center.
2. Tire Maintenance: Maintaining proper tire condition is essential for safety and efficiency. Regularly check tire pressure, tread depth, and overall tire condition. Recommended tire rotation intervals are typically every 6,000 to 8,000 miles (9,600 to 12,800 km) to promote even tire wear and extend tire life.
3. Brake System: Brake system maintenance includes periodic inspections to ensure proper operation and longevity. It is essential to have the brake fluid inspected and replaced as recommended in the owner’s manual or as advised by our Fiat service. Brake pad and rotor condition should also be checked during regular inspections.
4. Battery Care: The high-voltage battery is a crucial component of your Fiat 500e. While it requires minimal maintenance, regular inspections and monitoring are necessary to ensure optimal performance. It is recommended to consult the owner’s manual or contact your authorized Fiat service center for specific instructions regarding battery care and maintenance.
5. Fluid Checks and Changes: Routine fluid checks and changes play a vital role in keeping your Fiat 500e running smoothly. This includes monitoring and replacing coolant, windshield washer fluid, and other necessary fluids as indicated in the owner’s manual.
6. Software Updates: As technology evolves, software updates become essential for improving vehicle performance and addressing potential issues. Stay informed about software updates for your Fiat 500e and consult your authorized Fiat service center to ensure your vehicle is running the latest software version.
New Fiat 500e 2020 Maintenance Schedule conclusion
Conclusion: Following the recommended maintenance schedule for your new Fiat 500e 2020 is crucial for keeping your electric vehicle in prime condition. That will prevent future visits in Electric Cars Service Regular inspections, tire maintenance, brake system checks, battery care, fluid checks, and software updates are essential tasks to prioritize. By adhering to the maintenance schedule and consulting with Fiat service professionals, you can enjoy the full benefits of your Fiat 500e (2020) and ensure a reliable and enjoyable electric driving experience for years to come.
May 16, 2023
Can the coronavirus kill a Fiat 500e?
Can the coronavirus kill a Fiat 500e? The answer is No and Yes same time. CoVID-19 freezes life of many people all around the world. Lot of them was even not able to get the place where they left cars.
Unfortunately Fiat 500e don’t like to be not used. Combined with a low quality 12 volt battery, that needs to be recharged from a high voltage battery can cause the battery computer to hang and over discharge the HV batteries below safe minimal voltage.
47% Battery, “not ready”, not charging Fiat 500e? It does not have to result in the Fiat 500e death.
Our last patient became a victim of CoVID-19. However, thanks to the very quick response of its owner, the problem was solved with microscopic loss of the state of health to the HV battery.
Test drive and engine power
Below is a test drive video showing the engine power indicator. The six-year-old Fiat 500e after overdischarged HV battery rised by us shows the maximum factory performance of the engine, and thus the battery! I am really very happy with this result. It proves that the method and equipment I use do not degrade the battery during the process. This is not achievable with standard lithium battery chargers that is used by other services!

Of course I was able to get this result thanks to the fact that the battery was in very good condition before the problem begin. It is impossible to improve the state of lithium-ion cells, but it can definitely be worsened by incorrectly carrying out this operation.
As I have mentioned many times, the most important thing about this problem is time. The sooner the car gets to our Electric Vehicle Battery Service or we to the car, the lower the risk of damage to the Fiat’s 500e HV battery.

Just today, more than a year after the repair, I got an e-mail. Let me publish the first words of the blue 500e owner, to which i don’t need to add anything 🙂
Can the coronavirus kill a Fiat 500e?
Right!, if the car is left in this condition for a long period of time
No, if the car goes quickly to the appropriate Fiat 500e service center or Electric Vehicles Service Center
Definitely Not, if you trust me to fix this problem.

December 5, 2021

Fiat 500e Fuses

Fiat 500e Fuses and The Power Distribution Center is located on the right side of the underhood (green arrow)

Cavity	Maxi Fuse	Mini Fuse	Description
F01	60 Amp Blue		Body Control Module (BCM)
F02	20 Amp Yellow		HiFi Amp
F03	20 Amp Yellow		Ignition Switch
F04	40 Amp Orange		Brake System Module Pump
F05	70 Amp Tan		Electric Power Steering (EPS)
F06	60 Amp Blue		Radiator Fan
F07	40 Amp Orange		Regen Brake Module
F08	40 Amp Orange		HVAC
F09		5 Amp Tan	Air Electric Heater Charge Indicator
F10		10 Amp Red	Horn
F11		10 Amp Red	Electric Vehicle Control Unit (EVCU)
F14		5 Amp Tan	High Beam (Shutter)
F15		15 Amp Blue	Cigar Lighter
F16		10 Amp Red	Humidity Sensor VPAM AC Compressor
F18		5 Amp Tan	Electronic Vehicle Control Unit (EVCU)
F19		10 Amp Red	HVAC
F20		15 Amp Blue	Heated Seats – If Equipped
F23		25 Amp Clear	Anti-Lock Brake Valves
F24		7.5 Amp Brown	EPS YAW Sensor
F30		15 Amp Blue	Fog Lamps
F81	30 Amp Green		Electronic Shifter (ESM)
F82	30 Amp Green		Sunroof
F84		25 Amp Clear	Regen Brake Module
F85	30 Amp Green		Rear Window Heater
F87		5 Amp Tan	Electronic Shifter (ESM)

Power Distribution Center

Main Power Distribution Center (PDC) is second fuse box of Fiat 500e. PDC is located next to the 12V battery in the underhood compartment (yellow arrow). To access the Fiat 500e fuses, pull the release tabs and remove the cover.

Cavity	Maxi Fuse	Mini Fuse	Description
FPT9		15 Amp Blue	Battery Pack Control Module (BPCM) Power Inverter Module (PIM)
FPT13		10 Amp Red	EAC (AC Compressor) On Board Charging Module (OBCM)
FPT16		5 Amp Tan	Intelligent Battery Sensor (IBS)
FPT17		10 Amp Red	EAC (AC Compressor) Radiator Fan
FPT20		10 Amp Red	Electronic Vehicle Control Unit (EVCU)
FPT3	25 Amp White	Cartridge Fuse	Battery Coolant Pump
FPT5	20 Amp Lt. Blue	Cartridge Fuse	Inverter Coolant Pump

Last one very important fuse of Fiat 500e is High Voltage Fuse located under rear seat. Check how to remove HV fuse in proper way.

April 7, 2021

Fiat 500e remote diagnosis with Dunew Motorsport Bulgaria
Fiat 500e remote diagnosis with Dunew Motor Sport Bulgaria. It’s already my third electric Fiat 500e that I am helping to get started in Bulgaria. And I think the first such professional team with which I worked remotely from the beginning of COVID lockdown.

Over the last few months, several workshops have called me asking for help in the diagnostics of the Fiat 500e. To my great surprise, the same scenario was repeated every time. After a few minutes of conversation, it turned out that they really don’t have any knowledge of electric cars. Some of them might have repaired some electric scooters or Melexes before, but certainly nothing more complicated.
This time the differences could be heard after a few moments of conversation with Rumen – the boss of Dunew Motor Sport. In these few moments, we have already diagnosed the Fiat 500e HV battery & drivetrain with the BOSCH KTS. After the first conclusions and listing possible diagnostic tools, Rumen had one of them in place and another dedicated to Fiat, he ordered for the next day. Thanks to this, the next day we had all the updates of Fiat modules done.

An accident caused the purchased new tool to have a manufacturing defect. The defect would be very difficult to diagnose remotely without seeing the device. Although Rumen was working with this tool for the first time, he immediately noticed some minor irregularities in the operation of the device. Thanks to this, when problems with the device began, he was able to detect whether it was working well or not.

to be continue
December 11, 2020
Fiat 500e Rally Cross Słomczyn 2020
Fiat 500e Rally Cross @ Autodrom Słomczyn 2020 more video footage soon…
Future of motorsport is very silent 🙂

November 10, 2020
Service Charging System Fiat 500e
Service Charging System in Fiat 500e can be caused by many problems. Computer diagnostics is, as in the case of an electric car, is always the basis for repair.
– First, what DTC errors are reported?
– Next is a visual inspection of the High Voltage installation, Fuses etc.
Even at first glance nothing appears suspicious in the Battery Pack Control Module or in the OnBoard Charging Module diagnostics. But an experienced electric vehicles service technician can locate the problem in a few moments. With this car, in addition to the suspected dent to the Fiat 500e Battery Pack. The problem was a bent pin in the charging socket.
Another Service Charging System warning in a Fiat 500e is repaired!

Fiat 500e Service Charging System
The Fiat 500e Service Charging System is revealed by a red charging plug icon and a large inscription with this content. In addition, the two outer LEDs flash on the charging indicator.
The easiest way to cause this error is to connect to the car, a charging cable not connected to 220V. Therefore, first check whether the red LED on the charging cable is not blinking.
October 31, 2020
Fiat 500e RallyCross eN final preparations
Fiat 500e RallyCross eN final preparations photo gallery.
RallyCross eN modification list:
- removal of the interior and assembly of Sparco seats
- installation of a safety cage
- installation of lighting informing the track service about the condition of the car
- installation of an RSS sports steering wheel
- installation of sports tires
Fiat 500e RallyCross
Fiat 500e RallyCross
Fiat 500e RallyCross
Fiat 500e RallyCross
Fiat 500e RallyCross eN from theory to practice with ELIMEN Racing
preparing electric cars for RallyCross eN races is not only about welding a safety cage and mounting a racing seat. The Elimen Racing company dealt with the topic fully professionally. We considered all the theoretical aspects resulting from the differences between the High Voltage Packages
October 29, 2020
Service Charging System on Fiat 500e RallyCross
Service Charging System on Fiat 500e RallyCross just a few days before the official presentation of cars for authorization at the Polish Motor Association.
Meanwhile on the IPC- Instrument Panel Cluster. Big red turtle icon reports Limited Power Mode. Of course, this requires removal of the HV battery from the car and a detailed inspection of the third-party installation.

Service Charging System on Fiat 500e RallyCross
It is a lot of hard work to remove the HV battery out of the Fiat 500e. Fortunately, our prior experience does the job neatly. On the first try, the fault is located and no further issues found. Service Charging System solved.

We have another HV battery to be patched tomorrow, so I don’t have time to write more. Preparations are underway. To be continued …

October 21, 2020
Fiat 500e RallyCross. Preparation of the first racing cars
We are proud to announce that fiatservice.eu has become the official diagnostic support group to manage Fiat 500e for Rallycross Electric Races. Fiat 500e is qualified as a vehicle accepted by the Rallycross eN group – Electric Stock Cars.
For stock vehicles, a basic requirement of the FIA (Federation Internationale de l’Automobile) is an internal roll cage.
Fiat 500e roll cage
The company sbse.pl is responsible for the design and construction of the safety cage and created the interior protective coating. You have to admit that they did a beautiful job.

Fiat 500e RallyCross support
Fiat 500e RallyCross – The FIA also requires vehicles be outfitted with special lights, that inform the track staff about the condition of the electric vehicle. This made possible with fiatservice.eu technical support, working together with the engineers from Eliemen Racing .
fiat 500e racing lights
It turned out that our intervention was needed immediately to diagnose issues on the first two cars. Received three weeks ago, the HV batteries turned out to be completely dead. They had newly regenerated HV Battery packages from a competing company. The first had the symptom of damage as, of course, not switching on. Then showing 0% to 47% State of Charge on IPC indicating an overly discharged state.
Lifting and opening the HV housing revealed the problem. It turned out that the HV battery had broken cells. They were self-discharging. This condition should never leave a company that has undertaken the remanufacturing.
Despite our efforts to build one battery out of two, it was not possible to collect enough modules in good condition. Unfortunately, this reconstruction will require additional cells from a third HV packet, as well as re-checking all battery capacity measurements. Again, this is unacceptable with newly reconditioned units.
HV Battery rebuild

The second car had a problem with lost body settings. After successful re-programming, it turned out that the programmed ignition key had also been lost. These related problems were both quickly resolved.
body computer lost settings
to be continued …
October 17, 2020
Humidity sensor and wet rugs in the Fiat 500e
Humidity sensor and wet rugs in the Fiat 500e. Many people that come to our Electric Cars Service have problems with moisture in the interior of the Fiat 500e. Some have even wet passenger or driver rugs. Sometimes there is a musty smell inside the Fiat 500e.
Why is moisture control inside the Fiat 500e so important?
The reason is very simple and certain. Electric Fiat 500, like any electronic device, simply does not like water. Condensing moisture can literally flood the PCB with hundreds of drops of water. As you know, water is a great electrical conductor. It also promotes corrosion of connections on PCBs.
In my opinion, moisture is the beginning of the problems with the CTM module, responsible for the Fiat 500e Blue&Me.
But the most important reason is the flap hidden just under the rear seat, leading directly to the inside of the Fiat 500e HV Battery

Cause of dead humidity sensor and wet rugs in the Fiat 500e?
Cause of dead humidity sensor it may seem ridiculous, but it is moisture itself. Wet rugs in the Fiat 500e?
Most often they have their cause on the windshield. Irrationally again. Well, no, a badly designed drain from the windshield glass causes most of the problems described above. It is not enough that the water from the glass goes straight to the air conditioning tube leading to the cabin exchanger. Additionally, the water drain, clogged with leaves or needles, causes the water to slowly seep for hours after the rain.

October 13, 2020
Fiat 500e Remote Service in the United States
Fiat 500e Remote Service in the United States, begins with one of the biggest messes I have ever encountered. Jon sent me a n e-mail with dashboard photos of almost all possible errors appearing simultaneously on his 2013 500e. His main concern however, was repair for “Not Ready,” perhaps the most dreaded error of all. John admitted that he had already searched all sites and forums of 500e owners. He had tried a great many ‘fixes’ with no results for any of the errors.
Initial problem list, posted by John was:
- “Not Ready” immobile vehicle – with flashing odometer
- “Blue and Me,” steering wheel buttons, and USB not working
- AlfaOBD Body Computer error B2204
- AlfaOBD errors TMPS U0019 and C1001-4
- There is a postal letter envelope icon above odometer -origin unknown.
- Level 1 EVSE not charge, with two outside dashboard lights flashing.
Jon had OBDLink MX+ code reader and registered copy Android AlfaOBD, so I immediately asked him to send me the HV Battery Log. This’s the basis for servicing an electric car
Alfa’s OBD Battery Log reported few issues, except for the lack of the correct signal to switch the contactors and the lack of charging for the 12 V battery. This is a list of common problem for people who press “everything” in AlfaOBD. But for further diagnostics, I needed logs from other powertrain ECUs.
Unfortunately, Jon had issues that prevented getting additional logs. The situation was getting weirder. Using one trick, I was able to resolve the “Not Ready,” and get the Fiat 500e up and running. But not everything was working properly. Even though the car was already in the “Ready” state, the 12V battery was still not being charged.
Most troubling now was the number of errors in CAN communications, in addition to low 12V battery charge, ABS/RBC failure, and ECU configuration mismatch.

Fiat 500e Remote Service in the United States using WiTech
With no possibility to generate logs from several ECUs, I decided to put AlfaOBD on the shelf, and switch to the native 500e diagnostic tool: WiTech. It enables immediate connections to all modules in both CAN networks, giving a better and more reliable overview.
And so it was in this case. Upon WiTech connection, the diagnosis appeared immediately. I was then certain that the Fiat 500e Remote Service in the United States would be a complete success. which is confirmed by a very nice entry and 5 stars from Jon on Google
Fiat 500e service in United States
October 6, 2020
2019 Chrysler Pacifica Hybrid Repair
2019 Chrysler Pacifica Hybrid Repair after unprofessional towing. It is not the first time that the owner of an electric vehicle fails. The basic knowledge and rules for dealing with electric or hybrid cars are not yet as well known as the fact that gasoline cannot be poured into diesel.

What do you need to know about electric cars and where to find knowledge?

The basic source of knowledge on how to use an electric car should be the user manual. I am convinced that most car users would be surprised by the new discoveries if they even looked at the user’s manual of their car. Although I personally admit that the user’s instructions are written as if they were for morons. Therefore, the most important facts melt away somewhere between nonsense.
One of the basic rules is that you cannot tow an inoperative electric car. The motor In electric cars, is in most cases connected directly or at a fixed ratio to the driving wheels. Due to the fact that in electric vehicles, the engine is also a power generator with production not less than the car drive itself. That’s why when driving neutral, it generates huge amounts of electricity. Electricity which needs to be done somewhere. In a functional car, the basic receiver of this surplus is the high voltage battery.
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When the car has an accident or breakdown, the high-voltage battery is usually disconnected for safety reasons. To reactivate the HV batteries, You have to go to a service specialized in EV‘s. After the inspection of HV installations and computer diagnostics,we are able to perform post colision unlocking.
In this case, the car, after a delicate collision, was towed to a repair shop. Congratulations for the mechanic who was equally familiar with the subject and tow Hybrid car with automatic transmissions!! Thanks to that, after repairing the plastic bumper. He has to send the car to me cos all the lights on the Christmas tree lit and blinking.
2019 Chrysler Pacifica Hybrid Repair

2019 Chrysler Pacifica Hybrid Repair after towing takes a dozen of working hours to rescue every cart module one by one. Unfortunately did not finish without the module that has to be replaced.

October 1, 2020
Fiat 500e inspection before or after purchase
Fiat 500e inspection before or after purchase, we especially recommend to people who have never had contact with electric vehicles before. “before or after the purchase inspection” is primarily a visual check of the condition of the High Voltage installation. A small scratch on the HV battery casing may cause serious problems in the future.

Only when the appearance of the installation does not raise any suspicions, we proceed to computer diagnostics. We use original Fiat Chrysler Automotive service software – not a few dollars smartphone app! Thanks to that we are sure that we will read all faults, from every car module. All thanks to the original software give us a full overview of the condition of the Fiat 500e.
HV battery SOH reading
The next stage of computer diagnostics is the history and Health state of the Fiat 500e HV battery. From the battery computer log, we can even find out how long the accelerator pedal was between 0% and 20%. How long between 40% and 60%, or how long from 80 to 100%. You can use almost any Fiat 500e diagnostic tool to read SOH from BPCM but:
Fiat 500e batteries health reading (SOH) from the on-board computer may not be accurate. Therefore, the HV battery test under maximum load during a test drive gives the final picture of the fiat 500e battery degradation. Only then can we confirm whether the SOH, SOH-R, SOH-C calculated by the battery is consistent with reality.
Fiat 500e inspection before or after purchase
The Fiat 500e inspection before or after purchase can save you from large expenses in the future. Due to this that sticking a small hole in the battery is much easier than rebuilding the installation after flooding. That’s why I always draw the customer’s attention to a few details that may be the cause of the problem in some time. If you do not want to look for information on how to replace fiat 500e battery, use our services during your holidays.

I have been using, diagnosing, and repairing the 500e for over 6 years now. I have already traveled several thousand km with 500e. Not only with single car, but tens of electric five hundreds in all colosr and years combinations.
Therefore, it is not only an inspection of the engine oil level, condition of discs and pads. That’s all my know-how and Best Known Practices of fiat 500e usage and service electric vehicles. My fiat 500e service pictures:

September 24, 2020
Fiat 500e battery repair
Fiat 500e battery repair begins with computer diagnostics and a load test of the battery pack. With this information, it only takes a short time, to be absolutely certain that the operation makes sense. By following these steps now, we can most like prevent the future replacement of the entire HV battery . A very expensive procedure indeed.
The next step is to take the HV battery pack out of the car and, if necessary, measure the capacity of individual cells.

It is not recommended to mix used cells with new ones. For this reason we try to select used batteries with parameters as close as possible with the ones in the unit.
The search and testing begins!
Only when we know how many cells need to be replaced can we reconfigure into a safe and reliable unit.
500e HV battery repair
The final steps of Fiat 500e battery repair may appear to be easy, but are not easy to complete 😉 The list of steps to be performed is long and quite tedious. Way too much information to list here! Especially when we come to the most important part of the program – The Motor Power Test 🙂 Fortunately the Electric Vehicles Battery Repair procedure is almost identical with most all of the EV car brands and models on the market today.
August 26, 2020
Fiat 500e Battery LOG
Fiat 500e Battery LOG from AlfaOBD give us basic access to quite advance HV battery information. To use AlfaOBD app you need good quality ELM327diagnostic tool that works with Fiat 500e.
Get Your own Fiat 500e diagnostic interface. I can certainly recommend OBDlink MX+. It is a good quality interface that can easily handle large amounts of data in the Fiat 500e CAN network.
thanks to this you can now scan fiat 500e error messages
if you do not feel up to strength, we can deal with remote diagnostics of your car, through computer desktop sharing programs.

How to make Fiat 500e Battery Log with AlfaOBD?
Watch instructions video here or follow text instructions below. Electric Vehicles Battery log how to.
1. Open AlfaOBD and connect to your interface.
2. Select Fiat 500e / Battery Management / Battery Pack Control Module ver. 3
3. In new screen press CONNECT and wait for confirmation of the connection with the ECU.
4. At the bottom of the screen, select the second icon from the left – the battery icon
5. Press READ SYSTEM ID and READ SYSTEM STATUS
6. At the top of the screen, select the second icon from the right – the tool icon.
7. Select VIEW FAULTS AND GAUGES LOG, download it from google Chrom and email to me: fca@fiatservice.eu
Fiat 500e Battery Log with AlfaOBD – PC Version?
Open AlfaOBD on your Windows PC
Select Fiat / 500e 2013-19/ Battery Management / Battery Pack Control Module ver 3. and click Connect
Wait for connection and switch to Status/Faults TAB
On Status/Faults TAB click Read all faults and wait for results.
Than click Read System ID and wait for results.
Than click Read System Status and wait for results. This usually takes about a minute or two. you should wait until it is possible to scroll freely (until the log stops refreshing)
Last step is click on view log and save as text document
Send us your Battery pack log for diagnostic
Send us your Battery pack log for diagnostic instead of a car on lorry truck. When we know the problem better, I can come to you and repair the car at a local service station. Battery repair is much cheaper than fiat 500e battery replacement.
To upload the battery log to us for a diagnostic, please create new ticket in our Support Ticket System:
Upload Battery LOG – Open new ticket
July 20, 2020
Convert 500e Radio to European settings
Convert 500e Radio to European settings means changing the frequency hop of the Fiat 500e Radio. Thus excluding support for geostationary satellites over the States called Sirius

Convert 500e Radio to European settings Instructions:

To perform this operation You’ll need High Quality OBD tool like OBDlink MX+ WiFi and Full registered version of MuliEcuScan 4.6 and up.
go to proxy alignment and change Country Code

July 17, 2020
Fiat 500e diagnostic tool
Fiat 500e diagnostic tool is the most important thing in electric car diagnostics. Without a diagnostic computer, you are not able to determine what the problem is when, for example, Service electric vehicle system appears on the screen of your car
Many people have heard or even already have AlfaOBD applications on their phone or computer. It turns out to be much more difficult to choose the right Fiat 500e diagnostic tool. And this is due on of them based on ELM327 chip real flood of the market.

The first choice we will face will be the choice of computer or telephone communication. We have a choice of USB cable, WiFi card, bluetooth 3.0 – working only with android and bluetooth 4.0, which also works on devices with iOS.
Fiat 500e diagnostic scanners for very basic 500e computer diagnostics it doesn’t have to be expensive, but those China tools for just a few dollars are unfortunately not enough. Below are some of the tools I checked and offer.
Basic Fiat 500e diagnostic tools
Basic Fiat 500e diagnostic tools can be divided into 3 types: working on Android, iOS and PC.
Don’t forget to unplug any ELM327 OBD plugs before leaving car. OBD socket is directly connected to 12v battery, which can be discharged by the tool. This consequently causes too much discharge of the HV packet and can cause Fiat 500e dead

Android AlfaOBD and Bluetooth tools
AlfaOBD
AlfaOBD supported tools
How to save HV Battery LOG with AlfaOBD
How to save HV Battery LOG with AlfaOBD

iOS MultiECUScan and WiFi tools
multiecuscan
Multi ECU Scan supported tools

Fiat 500e custom mod diagnostics tools
Fiat 500e custom mod diagnostics tools by fiatservice.eu
specially prepared ELM327 to work with every function of Fiat 500e and MultiEcuScan.
With my modified specially for Fiat 500e OBD WiFi tool, You’ll not need any adapters to access Body Computer. For instance ready for 2016 Fiat 500e PROXY Alignment (very popular problem DTCs U1733-87)
Instead of plugging in, the yellow A3 adapter, you just have to flip the switch on my modified specially for Fiat 500e OBD diagnostic tool. As a result you can easily and quickly switch between the two CAN networks of the car.
Above all it’s ready to use with AlfaOBD, on Windows and Android or
Multi Ecu Scan on any platform, like Windows, Android, iOS
Profesional Fiat 500e diagnostic equipment
Profesional Fiat 500e diagnostic equipment for all FCA group Cars (Fiat Chrysler Automobiles) called WiTech MicroPod II. This is online tool working only with authorisation on FCA Servers. An essential tool for performing module updates.
Please support
Please support if you like my website. if you found any useful information here, please give me the smallest donation or just give me 5 star review on Google. it will be an incentive for the further development of the website

July 11, 2020
Level 2 Battery Charger
Level 2 Battery Charger from original Fiat 500e Level 1 charger? Yes it’s very easy to done. Just cut the 110V plug and change it to 16A 240V plug.
Use only good quality plug cos overheating is very common problem.
Fiat 500e Level 2 Battery Charger problems
Most common Fiat 500e Level 2 Charger by FCA problem is neutral and phase wire swap. In this case, the charger will not pass the initialization test. The effect is visible on the pictures below
Another common problem in old European installations is the lack of protective wire. This can be bypassed by combining a protective wire with a neutral one.
To diagnose all problems with charging cable You should use proper OBDII Fiat 500e diagnostic tool.

June 30, 2020
Fiat 500e dead
Fiat 500e dead? Not for me!
I can heal every dead Fiat 500e. My effectiveness is 100 out of 100. I don’t give up and never say that something can’t be fixed.
I don’t only replace entire modules with new ones.
It’s not fixing it’s replacing! 😉
fiat 500e battery pack is not a one part for me. I have all the necessary permissions to deal with automotive electrical installations and batteries up to 1 kiloVolts.
fiat 500e dead and not charging, not ready, Limited Power Mode with red turtle? I can fix all typical problems with electric Fiat 500e in just few days.
Cars that are improperly tried to be repaired, usually take much more time to be repaired. Therefore, the cost of repair can be several times higher.
So, do not think about choosing a mechanic. Trust the specialist with the greatest experience in repairing the dead Fiat 500e.
Fiat 500e dead typical problems
The most typical problem after import Fiat 500e to Europe is overdischarged HV battery. Fiat 500e dead Common Symptoms is:
- Dead 12V Battery
- Fiat 500e not charging with Level 1 and Level 2 Battery Charger
- Fiat 500e ‘not ready’ – Fiat does not allow to change to Drive
- Red Turtle with Limited Power Mode and fiat 500e not ready
- 47% or 0% HV Battery State of Charge
- fiat 500e error messages:
  - Fiat 500e service charging system
  - Fiat 500e unable to detect plug in
The thing is, that this problem can be prevented by proper EV preparation for shipping. Thats why the electric car should be exported by persons specialising in it. Any fiat 500e battery reset will not help after this problem.

At the moment, we offer a remote inspection service of Fiat 500e and preparation of the car for shipping in Southern California. Order this service to prevent fiat 500e dead after pick up in Europe
Preparation of the Electric Vehicle for shipping:
Preparation of the Electric Vehicle for shipping can be divided for 2 parts.
Before shipping;
- Charging the HV battery into the storage condition.
- EV Computer Diagnostics
- Switching the EV into sleep state.
After car pickup in Europe:
- remote “car wake up” – switch to normal operation mode.
- EV Computer Diagnostics
For cars prepared by us for shipping, we provide a warranty on the condition of HV batteries during import to Europe.
June 29, 2020
Rear Fog Led in Fiat 500e
Rear Fog Led in Fiat 500e, the Fiat 500e 2013 – 2019 (American Version by FCA) has yellow rear blinkers, thanks to which the rear lighting does not require any other modifications. Not every diagnostician, during the Fiat 500e registration review, pays attention to fog lights
Not every diagnostician, during the Fiat 500e registration review, pays attention to fog lights. After all, this is a City car and fog lights are rarely used in the city (maybe exceptionally in my region).
In my opinion, driving on anti-fog lights in urban traffic and driving bumper to bumper only unnecessarily blinds other drivers causing an increase in danger.
WHY YOU NEED Fog lights in the city center, since you must be ready for the fact that an unlit bike or pedestrian may appear on your way?
Rear Fog Led in Fiat 500e KIT
Any way if you need one – i got a ready Fiat 500e Fog Light KIT for You. Easy to assemble, no drill required.
June 16, 2020
Removing Fiat 500e HV Battery Pack
Removing Fiat 500e HV Battery Pack – photo gallery & video of the process. Process of the Fiat 500e battery replacement. First step before any EV service of HV instalation: Remove safety plug.
Fiat 500e HV Battery removal instructions on one of my old video.
June 13, 2020
Fiat 500e Maintenance Schedule
Fiat 500e Maintenance Schedule – List of service activities in the user’s manual, source: FiatUSA. What catches the eye first? The total estimated mileage and age of the car, which is really the Fiat 500e HV battery. FCA – Fiat Chrysler Automotive provides battery life of 15 years and 240,000km.
Are these real estimates?
Personally, I think YES! …

Check service list – The replacement of consumable parts in the Fiat 500e electric car basically contains nothing. The Fiat 500e maintenance schedule consists only suspension status inspection and roof rails lub every 2 years. I have already seen a 7-year-old Fiat 500e with the original Mopar 12V battery and fully functional original brake pads. Fiat 500e battery life is featured in several other posts on my blog.

Full technical specification of the Fiat 500e specs
Fiat 500e Service in Europe. Aftermarket – post warranty repairs of any EV or PHEV of Fiat Chrysler Automobiles. Electric Cars Service – All mechanical and electrical repairs. HV battery replacement and regeneration.
For more information about Fiat 500e check Specs

Please support
Please support if you like my website. if you found any useful information here, please give me the smallest donation or just give me 5 star review on Google. it will be an incentive for the further development of the website

June 5, 2020
Fiat 500e Loss Of Insulation
Fiat 500e Fiat 500e Loss Of Insulation. What is it and what is it for. In every electric car, the High Voltage (HV) installation is fully insulated from the 12V installation. The frame of an electric car is not a mass or a downside High Voltage (HV) installations, as it almost always happens with internal combustion cars and 12V installations.
Fiat 500e Loss of Insulation (LOI) occurs when there is a violation of the separation between the high voltage system and the low voltage system of the vehicle.
In the Fiat 500e, the high-voltage system is isolated from the 12-V system. The resistance between these points is calculated based on the energy potential of high-voltage systems (battery pack voltage). The higher the voltage potential, the higher the resistance (insulation) value.

Fiat 500e Loss of Insulation can be associated with one of the following high voltage installation modules:
Electric heater (AEH)
Power Inverter Module (PIM)
On-board charging module (OBCM)
Electric drive motor (EDM)
High voltage battery system (HVBS)
Electric air compressor (EAC)
Battery coolant heater (BCH)
High voltage energy distribution center (high voltage PDC)
Fiat 500e body insulation test, Insane equal to ZERO Ohms.
The described patient came to our Electric Cars Service on a tow truck from outside the province. Unfortunately, before falling into the hands of some amateur, because of the cost of tow trucks and the desire to save. Fortunately, it didn’t end in a serious accident. Fiat 500e diagnostic tools are not only to delete DTC’s and Fiat 500e Loss Of Insulation Fault is the best example. Bpcm HV battery insulation test results:
Fiat 500e body insulation test equal to ZERO Ohms.

2013 Fiat 500e body insulation test equal to ZERO Ohms means a high voltage short circuit with the car frame. Measurements made with the voltmeter confirm the diagnosis from the computer. Over 200V between the ‘+’ HV installation and the car frame. Fortunately, the car’s safety systems worked, causing it to become immobilized. Otherwise, if it were enough to clear the errors and start the car, driving it would be like groping in cables protruding from the wall or in a home fuse box.
Fiat 500e Loss Of Insulation. Bloody short circuit in high voltage installation
Diagnosing a short circuit in a high-voltage (HV) Fiat 500e installation begins with a visual inspection of the entire car. The initial look shows the rich service history of the Fiat 500e and what you can see at first glance, unfortunately LITTLE PROFESSIONAL !!!
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despite the lack of visible obvious cause of the problem, the list of potential is growing every day.
Fiat 500e on-board chargers for testing.
The real hits start when the HV system modules are dismantled, which we always start with draining the coolant. Tanks at the top full of pink, blue fluid (typical colour after mixing with a typical Polish fluid) from the unscrewed tap under the radiator does not even drop a drop … Attempts to start the water pump despite checked fuses and forced command from the service computer do not bring the desired result …
The water pump is only started for the first time after the installation of the ‘new’ Fiat 500e on-board charger (OBCM). Unfortunately, this substitution has no effect when it comes to puncturing high voltage installations. Could another hard-boiled module be an inverter (PIM)
An additional small body test using a micrometer explains a lot about the car’s history and potential causes of the problem. In addition, it suggests one more potential cause of the problem of Fiat 500e Loss Of Insulation

repainted the whole side and the post … and it was probably welded …
Fiat 500e Loss Of Insulation diagnostic
we check every cable, every element of the system. The amount of things that raise our concerns is bursting at the seams.
We do not even like the 12V battery, which is not a lead type A1 battery only A2 for the START / STOP function in combustion cars
battery test result after charging outside the car

the air conditioning compressor for several thousand dollars cries to heaven for vengeance
And someone else was rummaging while venting the RBC, thanks to which half of the engine compartment is stuck in the brake fluid.
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May 27, 2020
How to remove the HV fuse in Fiat 500e
How to remove the HV fuse in Fiat 500e. Removing the fuse causes physical and signal (HVIL – High Voltage Interlock Circuit) disconnection of the HV Battery. Operation necessary before starting any service work on the Fiat 500e. Smaller 12v fuses are located under the hood in PDC – Power Distributions Centers

May 26, 2020