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Home >> BMW >> 2012 >> X6 M >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair >> Emission Control, Oxygen Sensor >> 11 78 533 Replacing right control sensor (S63)
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11 78 533 Replacing right control sensor (S63)

Special tools required: 

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

Necessary preliminary tasks:

Unlock plug connection and detach.

Unclip control sensor cable from holder.

Release control sensor with special tool 11 7 020 .

Fig 1: Removing Control Sensor With Special Tool 11 7 020
G06178829Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

The threads of new lambda control/monitoring sensors are already coated with Never Seez Compound (refer to BMW Parts Department).

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: Securing Control Sensor With Special Tool 11 7 020
G06178829Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Check function of DME control unit.

Pay attention to cable routing of control sensor.