12 14 521 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. See 51 71 374 REMOVING AND INSTALLING/REPLACING 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. See 18 10 020 REMOVING AND INSTALLING/REPLACING VACUUM TANK 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.
Now clear the fault memory.