Air Temperature Sensor ( Ambient / Intake ): Service and Repair

Replacing Intake Air Temperature Sensor (M52TU, M54)

Turn off ignition.

Remove cover from fuel injectors.







Disconnect plug connection (1) for temperature sensor.







Press catch and withdraw temperature sensor (1) from intake air manifold.

Installation:
Check sealing ring on temperature sensor for damage, replace if necessary.
Coat sealing ring with antiseize agent.

NOTE:
Read out fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.