Crankshaft Position Sensor: Service and Repair

Replacing Pulse Generator On Crankshaft (M54)

Turn off ignition.

E46 only:
Remove reinforcement plate on front axle support.


CAUTION: The section "Removing and installing reinforcement plate on front axle support" contains important installation instructions.


If fitted:
Remove vacuum tank for exhaust flap.

All models:


NOTE: Installation location of pulse generator for crankshaft is underneath starter motor.







Unlock plug (1) and detach from pulse generator for crankshaft.
Release screw (2).
Remove pulse generator (3).


NOTE: For a better overview, this work step is shown on an engine that has been removed.


NOTE:
Interrogate fault memory of DME control module.
Check stored fault messages.
Rectify faults.
Then clear fault memory.