Crankshaft Position Sensor: Service and Repair

Replacing Pulse Generator On Crankshaft (M54/M56)

Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Switch off ignition
- E46, E60, E61 only:
Remove reinforcement plate on front axle support.

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

- If fitted:
Remove vacuum reservoir for exhaust flap.

All models:

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







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

Unlock plug (1) and remove.
Unscrew bolt (2).
Remove pulse generator (3).

NOTE:
Check stored fault messages.
Now clear the fault memory.