Intake Air Duct: Service and Repair
13 54 250 Replacing Air Intake Hose (N52/ N52K/ N53)Necessary preliminary tasks:
- Turn off ignition
- Remove lower section of microfilter housing 64 31 092 Removing and Installing/Replacing Microfilter Housing (Lower Section)
- Remove intake silencer housing
Unfasten clip.
Detach air-mass flow sensor (1) from throttle valve assembly.