Mercedes Benz Diagnostic Trouble Codes P-Code (P2176)
Mercedes Benz P-Code (P2176) A L L Diagnostic Trouble Codes ( DTC ): P M16/4 (Rear throttle valve actuator): Throttle valve adaptation is faulty. (P2176) ...
via YouTube https://www.youtube.com/watch?v=WrirFa3pODY
