535nomore 
2008 BMW 5 Series Sedan 535i 4dr Sedan (3.0L 6cyl Turbo 6M)
Major Disappointment
 This was my first BMW and I was really excited about buying it.It worked fine for about 6 months and then the trouble started.First it was the "reduced engine power" message related to the turbo system.The result of multiple trips to the dealer consisted of: engine reprogramming, replacing the high pressure fuel pump, replacing injectors, replacing a fuel pressure sensor, and reconnecting a vacuum hose that the mechanic "forgot" to connect. The car has had three water pumps installed. I've also had the battery replaced two years after I bought the car (new), the auxiliary jack replaced (it only played through one channel when I got the car.And a couple of other minor items.