12 14 521 Replacing pulse generator on crankshaft (M54/M56)

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Read out fault memory of DME control unit
Switch off ignition

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.

Fig 1: Removing Pulse Generator

Courtesy of BMW OF NORTH AMERICA, INC.