12 14 600 Replacing knock sensor

Necessary Preliminary Tasks: 

• Switch off ignition.
• Read out fault memory of DME control unit.
• Check stored fault messages.

Remove intake air manifold. Refer to 11 61 051 REMOVING AND INSTALLING INTAKE MANIFOLD .

Unlock and disconnect knock sensor plug connection.

Release knock sensor screw, remove knock sensor (1).

Installation: 

Clean contact surface of knock sensors.

Tightening torque, refer to 12 14 1AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Observe position of knock sensor in relation to engine block.

At angle of 20° to the perpendicular.

Fig 1: Removing Knock Sensor

Courtesy of BMW OF NORTH AMERICA, INC.