12 14 611 Removing/replacing left knock sensors (N63, S63)

Necessary preliminary tasks:

Unlock and disconnect plugs (1) on both knock sensors.

Release screws on both knock sensors (2).

Tightening torque 13 62 5AZ .

Remove knock sensors (3).

Fig 1: Identifying Knock Sensor, Mounting Screws And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean support face of knock sensors on engine block.

Fig 2: Locating Support Face Of Knock Sensor On Engine Block

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault message.

Delete fault memory.