12 14 521 Replacing crankshaft pulse generator (N52, N52K, N51, N53)
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION)
.
IMPORTANT:
Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released.
The end faces of aluminum screws/bolts are painted blue for the purposes of reliable identification.
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 aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released.
The end faces of aluminum screws/bolts are painted blue for the purposes of reliable identification.
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
- Switch off ignition
NOTE:
Installation location of pulse generator for crankshaft is underneath starter motor.
Preparatory tasks:
Preparatory tasks:
- Remove AIR INTAKE MANIFOLD
Detach plug (1) from crankshaft pulse generator (2).
Release screw.
Installation:
Replace aluminum screws.
Tightening torque 12 14 2AZ .
Withdraw pulse generator (2) from crankcase.
Installation:
Replace sealing ring.
NOTE:
Check stored fault messages.
Now clear the fault memory.
Now clear the fault memory.