12 14 610 Replacing right knock sensors (N62)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

(cylinder bank 1 to 4)

Interrogate fault memory of DME control unit.

Switch off ignition.

Remove intake air manifold. Refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62) .

CAUTION: Mixing up the knock sensor plug connections will result in engine damage!
Routing of wires and plug connections must conform to the original routing. This eliminates the risk of confusion and mix-ups.

Unfasten screws.

Fig 1: Removing Knock Sensors

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, 12 14 2AZ. Refer to ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Remove knock sensors (1).

NOTE: Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Now clear the fault memory.