Air Flow Meter/Sensor: Service and Repair

Removing and Installing/Replacing Mass Air Flow Sensor (M60, M62, M73)

Interrogate fault memory of DME control unit.
Switch off ignition.







Disconnect plug connection (1) from air-mass flow sensor.
Release hose clip (2).
Detach intake hose from air-mass flow sensor.







Open clips (1).
Detach air-mass flow sensor from air cleaner upper section.







Installation:
Check seal (1) between air-mass flow sensor and air cleaner upper section for damage, replace if necessary.
To facilitate assembly, coat seal with acid-free grease.

Read out fault memory of control unit of Digital Motor Electronics (DME).
Check stored fault messages.
Rectify faults.
Now clear the fault memory.