11 78 533 Replacing right oxygen control sensor (N62)

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Special tools required:

11 7 030

(cylinder bank 1 to 4)

Switch off ignition.

WARNING: Scalding hazard!
Only perform this task on an engine that has cooled down.

Unlock and detach plug connection (1).

Fig 1: Detaching Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip oxygen control sensor cable.

Release oxygen control sensor (2) with special tool 11 7 030.

Fig 2: Releasing Oxygen Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Threads of new oxygen sensors are already coated with Never Seez compound.

If an oxygen sensor is reused, only apply a thin and uniform coat of Never Seez compound to thread.

Oxygen sensor section projecting into exhaust system branch must not be cleaned or come into contact with lubricant.

Installation:

Tighten down oxygen control sensor (2) with special tool 11 7 030.

Fig 3: Tightening Down Oxygen Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, 11 78 1AZ. Refer to ENGINE - TIGHTENING TORQUES .

Pay attention to cable routing of oxygen control sensor.

Installation:

Read out fault memory of control unit of Digital Motor Electronics (DME).

Check stored fault messages.

Rectify faults.

Now clear the fault memory.