Replacing the Lambda oxygen sensor

Preliminary work 

• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING INTAKE SILENCER HOUSING .
• Refer to REMOVING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .

Removing the lambda oxygen sensor

Lambda control sensor

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• Detach the cable (1) from the clamp (2).
• Unlock and disconnect connector (1).

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• Unlock the connector (1) with the screwdriver (2) and detach it off from the carrier plate.

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• Release the Lambda oxygen sensor (1) with the special tools 0 493 751 (11 9 150) and 0 491 075 (11 7 030).
• Remove the Lambda oxygen sensor (1).

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  Installing Lambda oxygen sensor

  NOTE: Grease the threads of new oxygen sensors thinly and evenly.
  NOTE: For oxygen sensors that are reused, the following should be observed:
  NOTE: Thinly and evenly grease the oxygen sensor on the thread only. Do not clean the part of the oxygen sensor that does not protrude into the exhaust line (sensor ceramics) and do not grease.
  NOTE: For additional information see: OVERVIEW OF CONSUMABLES (BMW PARTS CATALOGUE) .

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  NOTE: For additional information see: OVERVIEW OF CONSUMABLES (BMW PARTS CATALOGUE) .
  • (1) = Thread
  • (2) = Sensor ceramics
  NOTE: The cable of the Lambda oxygen sensor is black. The installation location of the Lambda oxygen sensor is in front of the catalytic converter.
• Screw in the Lambda oxygen sensor (1).
• Tighten the Lambda oxygen sensor (1) with the special tools 0 493 751 (11 9 150) and 0 491 075 (11 7 030).

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• Connect connector (1) and attach it to the carrier plate.

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• Attach the cable (1) in the clamp (2).

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Follow-up work 

• Refer to INSTALLING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING ACOUSTIC COVER .