2008 BMW 5 Series 535xi 4dr Sedan AWD (3.0L 6cyl Turbo 6M)
My 535xi 2008 has been in shop for two months out of the last 12. It has gone back for rough idle and rough ride 4 times for the same problem. They have replaced the master computer, oxygen sensor and possibly other stuff. BMW and the dealership do not seem to work well together to solve tough problems. Symptoms are loss of power, similar to a missing cylinder combustion i.e., jerks. Situation is not constant. I get engine malfunction light on my dash but the car computer says all is OK. It is totally a frustrating experience.
BMW must directly intervene in issues that do not get resolved after repeat attempts and take owner into confidence on what is going on.