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

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out fault memory of DME control unit.
Turn off ignition.
Disconnect BATTERY NEGATIVE LEAD .
Remove LEFT INTAKE MANIFOLD .

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

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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.