1214521 Replacing crankshaft pulse generator (N52, N52K, N51, N53)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION)
.
IMPORTANT:
Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released.
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminium screws/bolts are not magnetic.
Jointing torque and angle of rotation must be observed without fail (risk of damage).
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released.
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminium screws/bolts are not magnetic.
Jointing torque and angle of rotation must be observed without fail (risk of damage).
Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Turn off ignition
NOTE:
Installation location of pulse generator for crankshaft is underneath starter motor.
Preparatory tasks:
- Remove INTAKE PLENUM
Detach plug (1) from crankshaft pulse generator (2).
Release screw.
Installation:
Replace aluminium screws.
Tightening torque 12 14 2AZ .
Withdraw pulse generator (2) from crankcase.
Installation:
Replace sealing ring.
NOTE:
Check stored fault messages.
Delete fault memory.
Delete fault memory.