11 78 530 Replacing left control sensor (N63 O1)

Special tools required:

11 7 020 .

WARNING: Risk of burning.

Only perform repair work after engine has cooled down.

Necessary preliminary tasks:

Check function of DME.
Switch off ignition.
Remove ENGINE COVER .
Remove left INTAKE SILENCER HOUSING .

Release control sensor with special tool 11 7 020 .

Fig 1: Removing/Installing Control Sensor

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 2: Removing/Installing Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.