FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Crankshaft Position Sensor: Service and Repair



12 14 521 Replacing Crankshaft Pulse Sensor (N55)







IMPORTANT: Read and comply with notes on protection against electrostatic discharge (ESP protection).







Necessary preliminary tasks:
- Read out the fault memory of the DME control unit.
- Switch off ignition.
- Remove starter motor.







Unlock connector (1) and remove.
Release screw (2).
Tightening torque 13 62 6AZ.
Remove connector housing from crankcase.
Release screw (3).
Tightening torque 13 62 7AZ.
Pull pulse sensor from crankcase and remove.







Installation note:
During installation of pulse sensor make sure that guide pin (1) of pulse sensor is inserted in guiding groove (2) of crankcase.







NOTE:
Assemble engine.
Check stored fault message.
Delete fault memory.