The engine would completely shut down while driving you had to completely take foot off gas petal because it would not excellent to make the car run it would almost come to complete slow down and stop you could then push gas and it would pick up and start running again.was worse when raining. Then the brakes got to where they would not stop and would lock up.Iwas on busy road and on interstate when it happened several times I could have been hit in the rear end and it would have caused a major collision. There was no warning lights come on at any point and timethen the brakes started where they would get hot and start smoking and eventually they locked up could not even drive the car. I didn't have the money to try to get it fixed so my 2015 BMW 320i sit for months before I could get it looked at had to replace frount and back rotors, calipers and brakes, ABS system replaced. When they checked it out the man at KADENZA AUTO REPAIR SHOP said that was only the second BMW that they had worked on that had this problems and didn't know why or what caused the problem. They did the repairs but couldn't guarantee that it wouldn't happen again said it could be a manufacturer defects. It was really dangerous when it started doing it because I could have been hit in the back of the car and it would have caused a major car pile up accident. It started doing it several months back because I wasn't able to drive it for several months had to tow it in when I took it to KADENZA AUTO REPAIR.They specialize in foreign and domestic cars.

- Knoxville , TN, USA

The BMW 320I 2015 vehicle continues to drop tire air pressure below a safe level. The tire pressure monitoring system is disabling the driver's onboard display with a low tire warning alert. All 4 tires are dropping from 32psi to 23psi which is a safety hazard. Each time I visit the classic BMW dealership of plano, tx about the TPMS problem, tires are again topped off at 32psi. The dealership will not give me a service receipt after adding air in the tires. I was informed that I must pay $163 in order to receive a service receipt once the air is installed in the tires, or I can have the air installed in the tires free, and receive no receipt. This allows the dealership to suppress the actual number of complaints, because there is not a paper trail. I purchased 1 recommended new tire in September of 2015 from the dealership and all 4 tires were set to 32psi. Two months later in November 2015 all four tires were at 23psi. The 2015 car is only 8 months old, and the service department said 23psi is normal. I disagree with that statement. The TPMS, or the tires, or both are defective and are a safety problem. The problem occurs during driving, and making turns. The problem of severely under inflated tires is so numerous that it requires the dealership to provide a service lane only for inflating defective tires.

- Mesquite, TX, USA