2014 BMW I3 Complaints

The roof of the BMW started delaminating a few years back, and it is compromising the structural integrity of this vehicle. In an attempt to fix the roof, epoxy was applied after it was smoothed down and the roof looked aesthetically pleasing for about a year, until it started delaminating rapidly in the same spots. Now, the roof liner is starting to collapse, telling me that moisture is getting into the vehicle, further damaging the roof.

Sudden unintended deceleration on highway Complete loss of propulsion Thermal warning / overheating Date: May 11, 2026 Mileage: approximately 18,966+ Vehicle: 2014 BMW i3 REx, VIN [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2014 BMW I3. The contact stated that while driving at 49 MPH, the vehicle made an abnormal screeching sound and was leaning on the driver's side rear-end. The vehicle was taken to an independent mechanic, where a rear-end inspection was performed, and the contact was informed that no failure was found. The vehicle was not diagnosed or repaired. The contact related the failure to an unknown engine mount bracket recall. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 154,140.

BMW Service Bulletin SI B22 04 15 to replace motor mount bolts and other components due to failure in 2016 was done on my vehicle in 2016. BMW has replaced all motor mounts in 2014 and 2015 i3's in Europe. The motor mounts were redesigned for 2016 and newer models. From online forums I see that many of the 2014 and 2015 North American i3 motor mounts continue to fail as they have on my BMW i3. I am reporting this failure in order for NHTSA to review this vehicle for a recall on motor mounts for all 2014 and 2015 USA BMW i3's.

back in march 2025 my 2014 BMW i3 REX gave out a "Drivetrain Malfunction" error. The car's propulsion died while driving. I was driving in the street on the way home from picking up my chidren from school when the power completely shut off while driving. I had a full battery charge and also had about 44 miles worth of gas to use. I pull over to the side of the road, turn the car off and tried to turn it back on but it wouldnt move. i was about 1 mile from home and was able to get the car towed home using AAA. The error code disappeared the next day and i kept driving the car it felt as if it the problem went away. Fast forward Augist 1 2025, the car once again shut off while in the middle of the street driving. I could not get it back on and once again had to get it towed. Once home it started back up like nothing wihtin a few hours. A week later on August 8 it did it again but this time i was driving on the freeway. I was soo afraid for my life because the car started to slow down as if it was runing out of gas and barely made it to get onto the side of the road away from traffic. Once again the car got towed home i was 4 miles away from home. These occurences continue to happen more frequently now. With each time the car started the error message reappeared and the propulsion died. This is gettting out of hand and becoming dangerous for me.

The carbon fiber roof is delaminating and a portion of it came off and hit the front windshield of another car, causing them to partially lose control of their vehicle almost causing an accident. This is a known issue BMW has not taken an action to resolve it. I’m afraid that a larger chunk may hit somebody’s car and cause a severe accident.

A large portion of the car's hood (carbon laminate?) has ripped off and is surely to continue to tear and fly off while driving.

When the vehicle depletes it's battery and switches over to the range extender or the gas engine, the car will suddenly shut off and a drivetrain error appears. This seems to only happen when the car is traveling over 55 mph. This has happened on repeated occasions. If you then leave the car sit for several minutes and then turn it back on, it is driveable as long as it is driven under 55 mph. Since this only happens at higher speeds, it's been extremely dangerous because other cars are also traveling at high speeds and this has happened once on a freeway where the speed limit was 70 mph. If there's no shoulder to guide the car onto when this happens, the car would be disabled on the road because it will not drive again right away. I've taken it in to fix and the mechanic said it was a software update that was needed. However, the problem happened again a few months later. There was no warning before this happened both times it occurred.

AC Compressor for the car battery system failed. There was a check engine light that was on steady, but not flashing. The electric range in the car reduced by 20 to 30% as a result of this fault. It was brought into the BMW dealership for inspection and they determined that was a short in the AC compressor and that the whole AC compressor system would need to be replaced; compressor, lines and radiatorx2 (battery radiator also needed). This was because this typical failure causes metal filings to enter the cooling system and it's not recommended to flush it out. There were no prior warnings or noise leading up to the problem. I'm concerned that there is a high risk that further driving the vehicle or charging it could cause a battery failure and cause it to catch on fire since there is no cooling. Normally a flashing engine light means to stop driving immediately, but there was no flashing light only a steady light. The BWM system check menu reported no issue with the car! The repair bill for this is about $8,400 and is rediculous. This seems to be a common problem when you start searching for it. Seems to also happen to the BMW i8 which shares the same compressor. Note that there are several revisions to the ac compressor part number which seems to suggest that they had to keep changing the part as production went on but did not notify affected cars that they could have a serious problem. This shouldn't be happening at 77k miles.

I am writing to bring to your attention a persistent issue I have been facing with my 2014 BMW i3, VIN: [XXX] . Unfortunately, I have been experiencing an airbag and/or seatbelt alert problem identified as "Driver Restraint System Malfunction" with the error code 930904 displayed on the dashboard. I have attached supporting documentation, including images and information from the BMW Service Bulletin, which clearly outlines that the error code 930904 is a known and routine problem for my specific vehicle model, thus a Service Bulletin was issued by BMW, as you can see attached from BMW’s website. It has come to my attention, through online forums and discussions within the BMW i3 community, that others have successfully resolved this issue under the terms of the service bulletin, but for some reason I keep getting the runaround. Regrettably, despite my efforts to address this matter with BMW USA on three separate occasions since October 2023, I have not received a satisfactory resolution. Instead, I have been redirected to BMW Authorized Dealerships, where I am faced with unjustifiable diagnostic fees and repair costs. It is perplexing to me that other members of the BMW community have had their issues resolved under the service bulletin at no cost, while I am being subjected to unnecessary expenses. To provide you with a clear overview: 1. The error code 930904 is documented in the BMW Service Bulletin for my 2014 BMW i3 REX. 2. Other BMW i3 owners have successfully had this issue resolved under warranty through the service bulletin. 3. BMW USA and its authorized dealerships have been uncooperative in acknowledging and addressing this known issue. I visited my local BMW dealership in Rochester, NY, on 10-10-23, only to be informed that they could not locate the referenced code and insisted on charging me a diagnostic fee and an additional $1,800 for the repair. Are you kidding me? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)