BMW X3 Service & Repair Manual: Removing/replacing knock sensor (1st and 2nd cylinder) (N20, N26)

Necessary preliminary tasks:

Unlock connector (1) and remove.

Release bolt (2) on knock sensor.

Remove knock sensor for 1st and 2nd cylinder.

Electrical

Installation note:

Clean contact surface of knock sensors on engine block.

Electrical

NOTE: Reassemble the vehicle.

Check stored fault message.

Delete fault memory.

Switch on ignition. Connect MoDiC or DIS/GT1 Tester. Select "Coding" program. For subsequent procedure, follow instructions in MoDiC or DIS/G ...

Necessary preliminary tasks: Read out the fault memory of the DME control unit. Switch off ignition. Remove STARTER MOTOR. Unlock connector ...

BMW X3 Service & Repair Manual > Final drive with cover: Replacing rear cover gasket on rear differential (188LW)
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin! RISK OF INJURY if oil comes into contact with eyes and skin! IMPORTANT: In event of oil loss, always check rear differential for traces of wear and damage. To avoid leaks from the rear differential cover, do n ...

BMW X3 Owners Manual