12 14 610 Removing/replacing right knock sensors (N74)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2016 BMW 760Li, 2015 BMW 760Li, 2014 BMW 760Li, 2013 BMW 760Li, and 2012 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out the fault memory of the DME control unit.
Switch off ignition.
Remove INTAKE PIPE, RIGHT .

Feed out vacuum hose (1) and set aside.

Fig 1: Identifying Feed Out Vacuum Hose

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Release positive battery cable from clamps

(1) and set aside.

Fig 2: Identifying Positive Battery Cable Clamps

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Release screws (1) on knock sensors, right.

Tightening torque: see 4AZ in 13 62 SENDERS FOR CONTROL UNIT

Remove knock sensors.

Installation note:

Clean contact surface of knock sensors on engine block.

Fig 3: Identifying Knock Sensor Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach connector (1) from knock sensors on the right behind the expansion tank for the charge air cooler. Release EXPANSION TANK for charge air cooler and set aside.

Feed out and remove knock sensors, right.

Fig 4: Identifying Knock Sensor Connector

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NOTE: Check stored fault message.

Delete fault memory.