12 14 610 Replacing right knock sensors (cylinder bank1-6)(M73)

Remove intake air manifold for cylinder bank 1-6. Refer to 11 61 046 REMOVING AND INSTALLING / REPLACING AIR MANIFOLD FOR CYLINDERS 1-6 (M73) .

Switch off ignition.

CAUTION: Confusing the plug connections of knock sensors gives rise to engine damage. Line routing and plug connections must match original routing to prevent any possible confusion.
Connector allocation on cable duct for engine wiring harness,
refer to 12 51 001 WIRING HARNESS - REPLACING ENGINE SECTION (M73)

Knock sensor 1 for cylinders 1 to 3.

Unfasten screw.

Tightening torque, refer to ENGINE - TIGHTENING TORQUES

Fig 1: Removing Screw (Knock Sensor 1 For Cylinders 1 To 3)

Knock sensor 2 for cylinders 3 to 6.

Unfasten screw.

Tightening torque, refer to ENGINE - TIGHTENING TORQUES .

Fig 2: Removing Screw (Knock Sensor 1 For Cylinders 3 To 6)

Interrogate fault memory of control unit on Digital Motor Electronics (DME), check fault messages in memory, rectify faults and cancel fault memory.