The BMW M5 2005- comes manufactured with two throttle body actuators. Each throttle body actuator controls 5 throttle bodies. The problem is the actual throttle body actuators on these BMW M5’s, they are a common failing part and can cause Loss of Power and in some cases the Engine ECU may log a fault code and illuminate the Engine Mangement Light (EML).
Common Failing Part Numbers:
A2C53046176
06/5WK49066/1362
7834494-07/A2C53032056
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Noteworthy to mention, if the faulty actuators were overlooked for a long time then the exhaust ionic sensors would probably need to be replaced as well.
I have the same problem, but how do you know whick one of the throttles is the bad one? how can I test it? please let me know
thanks