11 78 530 Replacing left control sensor (N63)

Special tools required:

11 7 020

See ENGINE - SPECIAL TOOLS (N54, N63) .

WARNING: Scalding hazard!

Only perform this work after engine has cooled down.

Necessary preliminary tasks:

Check function of DME control unit
Switch off ignition
Remove air filter housing . See 13 71 030 REMOVING AND INSTALLING BOTH INTAKE FILTER HOUSINGS (N63) .

Unlock plug connection and detach.

Unclip control sensor cable at retaining clips.

Release control sensor with special tool 11 7 020.

Fig 1: Removing/Installing Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

The threads of new lambda control/monitor sensors are already coated with Never Seez Compound

If a lambda control/monitor 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/monitor sensor which projects into the exhaust system 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 (1).

Tightening torque 11 78 1AZ, see EMISSION CONTROL

Fig 2: Removing/Installing Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check function of DME control unit.

Pay attention to cable routing of control sensor.