11 78 530 Replacing left control sensor (S63)

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Special tools required:

11 7 020

WARNING: Risk of burning!
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

Check function of DME.
Switch off ignition
Remove ENGINE COVER

Unclip control sensor cable at retaining clips.

Fig 1: Identifying Control Sensor Cable Retaining Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip control sensor cable (2) at retaining clips (3).

Unlock plug connection and detach.

Fig 2: Identifying Control Sensor Cable And Retaining Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Release control sensor with special tool 11 7 020 .

Fig 3: Releasing Control Sensor Using Special Tool (11 7 020)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

The threads of new oxygen control/monitoring sensors are already coated with NEVER-SEEZ COMPOUND .

If a lambda control/monitoring sensor is to be reused, apply a thin and even coating of Never-Seez Compound to the thread only.

The part of the lambda control/monitoring sensor which projects into the exhaust branch (sensor ceramics) must not be cleaned and not coated with lubricant.

Secure control sensor with special tool 11 7 020 and a torque wrench.

Tightening torque 11 78 1AZ .

Fig 4: Releasing Control Sensor Using Special Tool (11 7 020)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check function of DME control unit.

Pay attention to cable routing of control sensor.