I bought my 06 M5 in Dec 2010, since I bought the car it had a bad steering angle sensor which caused malfunctions in DSC,FTM,DBC,EDC,start assist systems. The dealer I bought the car from had to repair this because the car has a used car warranty (Puerto Rico Law). I got the car yesterday after the repair, and my car feels completely different with all these systems operating. Especially the suspension and the braking. The only thing not working now its the button to adjust the steering wheel, the wheel moves when I turn the car on and off but not when I operate the switch. Any help on this would be greatly appreciated (I dont want to take my car back to that dealer). Thanks