Removing/replacing knock sensors (N55) (X6 xDrive 35i, X6 sDrive 35i)

Necessary preliminary tasks: 

• Read out the fault memory of the DME control unit.
• Switch off ignition.
• Remove INTAKE PLENUM .
• Vehicles with the Bosch high pressure pump only: 

  Remove HIGH PRESSURE PUMP .

  Unlock connector (1) and remove.

  Feed out connector (1) behind feed line, remove FEED LINE if necessary.

  Courtesy of BMW OF NORTH AMERICA, INC.

  Release screws on both knock sensors (1) and remove knock sensors (1).

  Tightening torque 13 62 5AZ .

  Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Clean contact surface of knock sensors on engine block.

Courtesy of BMW OF NORTH AMERICA, INC.