Four problems related to engine failure have been reported for the 2012 BMW 328. The most recently reported issues are listed below.
BMW says this car has a defective timing chain module that will cause engine failure. I had to have my car towed because of this problem. The engine failed while I was on the highway.
Hello I own a BMW 328i with a n20 engine, while driving down the highway I got an alert come across my screen saying that the oil pressure low and to stop immediately or engine failure may occur. I don't have to tell anyone how scary it is to be driving down the highway and think that your timing chain may break off and you are still in the middle of the road ,but I stopped and turned the car off. After doing some research and getting the car diagnosed I ran into the timing chain guide and timing chain issue of failing on these cars way before they hit any high miles my car currently has 81k miles on it and this issue has immobilized my car to prevent further damage I will not drive that car, when talking to BMW about the issue they told me that they do know about the issue but will not fix it for free.
Tl the contact owns a 2012 BMW 328i. While driving 60 mph, the vehicle seized without warning. The contact managed to veer to the shoulder of the road and attempted to restart the vehicle, but it lost power. The vehicle was towed by the contact's insurance company to BMW of beaumont (1855, I-10, beaumont, TX 77701, (409) 840-3585) where it was diagnosed that the engine failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that the VIN was not included in a recall. The failure mileage was approximately 128,000.
Driving at normal highway speeds approx. 55 mph, when low oil pressure warning came on and drive-train malfunction lights flashed on screen. Car stalled out and was almost unable to get to side of road. Car was towed to BMW dealer, cause of engine failure was due to the timing chain and guide. Will require new engine (out of warranty - BMW will not provide assistance). After additional research it has led to my conclusion that this is a common problem and a class action law suite has been submitted in regards to early model n20 motors. Premature engine failure due to timing chain defect. Car was well maintained with regularly serviced oil changes, etc. I have all parts receipts for all service done.