While driving about 70 mph in a straight line on the highway, the dynamic stability control light turned on and the car jerked and stuttered almost as if it was braking on its own or locking up. This occurred twice today and is a significant safety issue as it was unexpected and could have led to a loss of control, while driving at a significant speed on the interstate. BMW should have to do something about whatever is causing this problem.

- Washington, DC, USA

I bought a used 2001 BMW 330ci 2dr coupe on the date of May 5th 2017. I had this vehicle for a very short amount of time approximately 7 weeks time. The takata air bag was present in this model, on top of that the well known overheating issue came my way. My model would overheat at the point where the auxiliary electrical fan would not kick in to avoid overheating. Electrical stability was at lost due to these present issues. Oddly enough the fan would actually run in reverse polarity pushing air out of the engine when it should be pulling the air in. While driving on a city street my car overheated causing me to break down, a thermostat issue could be present all of this occurred in motion.

- San Jose, CA, USA

The "yaw sensor" fails in these cars, frequently causing a sudden braking on one side of the car and pulling the car in that direction. This is a real hazard: The car suddenly brakes by itself without warning. The problem is well described in these discussion forums: www.M3forum.net/M3forum/archive/index.php/T-450191.html www.bimmerforums.com/forum/showthread.php?1022059-lateral-acceleration-sensor-failure the original sensors for this car were discontinued and the only replacement part available is four to five times the price of the original part -- over $1000. This has led to a market in used sensors that are also in danger of failing. This is a real hazard.

- Decatur, GA, USA