78 533 Replacing right control sensor (S63)

Special tools required:

11 7 020

WARNING: Scalding hazard!
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

Check function of DME control unit
Turn off ignition
Remove AIR FILTER HOUSING .

Unlock plug connection and detach.

Unclip control sensor cable from holder.

Release control sensor with special tool 11 7 020 .

Fig 1: Releasing Control Sensor Using Special Tool (11 7 020)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

The threads of new lambda 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 (1).

Tightening torque 11 78 1AZ .

Fig 2: Tightening Control Sensor Using Special Tool (11 7 020) And Torque Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check function of DME control unit.

Pay attention to cable routing of control sensor.