12 14 611 Removing/Replacing Left Knock Sensors

12 14 611 Removing/replacing left knock sensors (N63)







Necessary preliminary work:
- Read out the fault memory of the DME control unit.
- Switch off ignition.
- Disconnect battery earth lead.
- Remove left intake plenum.







Unlock and disconnect connector (1) on both knock sensors.
Release screws on both knock sensors (2).
Tightening torque 13 62 5AZ.
Remove knock sensors (3).







Installation note:
Clean contact surface of knock sensors on engine block.







NOTE:
Check stored fault message.
Delete fault memory.