mach es Dir einfach. An die Diagnose bei BMW und dann kann man das Problem eingrenzen.
Dies sagt der neue Besitzer eines PEAKE Fault Code Readers
Features:
Available for most BMWs built between 1987 and 2003*
Displays all engine fault codes; allowing you to do your own engine diagnostic!
Resets the Engine light (AKA "Check Engine" or "Service Engine Soon"
Resets the Oilservice and Inspection lights, and service mileage.
Very, very easy to use
Low cost ($149)*
Includes instruction manual and code chart