12 14 521 Replacing crankshaft pulse sensor

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

IMPORTANT:

Aluminium screws/bolts must be replaced each time they are released.

Aluminium screws/bolts are permitted with and without colour coding (blue).

For reliable identification:

Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

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

Detach plug (1) from crankshaft pulse sensor (2).

Release screw.

Installation:

Replace aluminium screws.

Tightening torque 12 14 2AZ .

Fig 1: Identifying Plug And Crankshaft Pulse Generator With Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Withdraw pulse sensor (2) from crankcase.

Installation note:

Replace sealing ring.

NOTE:

Check stored fault messages.

Delete fault memory.