Operation CHARM: Car repair manuals for everyone.

Knock Sensor: Service and Repair



12 14 600 Replace the knock sensor (N12, N14, N16, N18)







Necessary preliminary work:
- Switch off ignition.
- Read out fault memory of DME control unit.
- Check stored fault messages.

Installation location:
The knock sensor is located under the intake air manifold next to the starter motor.







Unlock connector (1) and remove.
Release screw and remove knock sensor (2).

Installation note:
Clean contact surface of knock sensor on engine block.
Tightening torque 13 62 2AZ.







NOTE: Delete fault memory.