11 78 533 Replacing right oxygen control sensor (N62/N62TU)

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 7 030

(cylinder bank 1 to 4)

Necessary preliminary tasks:

Switch off ignition.
Remove reinforcement plate. See 31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE .

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

Release plug connector (1) and pull off.

Unclip control sensor cable.

Fig 1: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Identifying Control Sensor

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Installation:

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

If the 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 control sensor (2) with special tool 11 7 030.

Tightening torque, see 11 78 1AZ. in 11 78 EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR .

Pay attention to cable routing of control sensor.

Fig 3: Tightening Control Sensor With Special Tool (11 7 030)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Different heat shields!

To prevent fraying, make sure that wiring harness (1) is correctly laid on heat shield (2).

Fig 4: Identifying Heat Shield And Wiring Harness

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Check stored fault messages.

Rectify faults.

Now clear the fault memory.