I was driving like I normally do to work and my transmission temperature warning light came on and the car went limp and a few moments later the clutch temperature warning light came on also. It stopped doing it for a while and now it does it very often but does not put a code in the cars computer database so it can't be tracked. This happens often a in city with lights etc and sometimes on the highways also.

- Tucson, AZ, USA

I took my car in for service on March 10, 2020 for servicing. During the time they had my car, they replaced my front and rear brake pads, completed the inspection, and gave me the car back after a couple days. On April 10, 2020, I took my car into service again as I was having drive train malfunctions constantly. Several weeks of being in the shop, BMW service technicians found that cooling fluids had leaked from my top mounted intercooler, into the intake manifold and through the intake valves, and directly into the engine of my vehicle. Since the engine now needed to be replaced, BMW of fremont recommended and requested for an engine replacement but BMW had rejected it and stated that they found some 'tune' in the vehicle. I purchased an extended warranty and maintenance plan from BMW directly that is still active. My engine replacement should be covered under warranty but BMW is not adhering to that warranty. After countless calls and emails being sent back and forth between me and BMW, new information arose stating that BMW found that the 'tune' found in my vehicle was merely a valve controller for my exhaust system. BMW of fremont clearly mentioned to BMW that this leak is not caused by or even remotely correlated to the valve controller, and that this issue is mechanical, not software related. Clearly, this has nothing to do with the major issue at hand, which is the leaking intercooler causing my engine to fail. It is a major safety issue for my car to be run without the engine replacement, as the car now has a much higher chance of being hydro-locked. My car has now been at BMW of fremont for the past two months. I'm still paying my monthly dues for the vehicle diligently even though BMW has caused this many issues.

- Fremont, CA, USA

There's a known issue with 2015+ BMW F80 M3 S55 engine. The issue is the crank hub spinning out and damaging the car. It leaves the vehicle in a dangerous state when driving on the road and to others near by. This issue happens to stock vehicles and modded ones. Links about it: Https://www.youtube.com/results... specific video that explains the crank hub issue with this model of a car: Https://youtu.be/sjr3zhegs_U?T=160

- Chicago, IL, USA

My car has spun it's crank hub and the car is only 3 -4 years old most people I know with the same car as mine just different year has had to replace the crank hub as well. It's a common failure on these cars and would like NHTSA to recall this common problem that's been happening since 2015. When the crank hub fails from timing going off countless issues can arise which can cause engine to be replaced which is a very costly repair. It would a piece of mind to have the F80/F82/ F83 recalled it would be a piece of mind for our community. Now how it happened was, I was driving one night coming from work around 7:30 pm on the highway I was exiting the highway because that was the exit for me to get off to head home so I downshifted, car rev matched automatically in sport mode and next thing I know I hear a pop noise. The car shuts off while rolling on the off ramp, lucky I was slowing down already heading to a stop I rolled off to the side and had car towed to a german engineering shop. The next morning I went to the shop to hear what was the issues, the crank hub spun which means the timing was thrown off by a little. That cost was over 3K to fix. This happened last week on Thursday December 12th, 2019. So the car is still being fixed, there were other cars there getting crank hub fixed for either preventative maintenance or the same issue happened to mine. But I'll be getting my car by the weekend I was told. I will post documentation/ pictures with another form once car is finished. I do plan to buy another F80 or F82 as a gift for my mother but this issue I hear happening everyday makes me hesitant to get another one.. another issue, I feel as if the manual transmission for the F8X series have bad 1st gear synchros because my first gear pops out and no one knows the issue. All my friends that have a 6 speed manual F8X have the same first gear popping out problem.

- Rosedale, NY, USA