Replacing Oxygen Control Sensor (M52TU/M54/M56)

11 78 510 - Replacing oxygen control sensor (M52TU/M54/M56)





Special tools required:
- 11 7 020 11 7 020 Socket Wrench Socket WAF 22

(for work step number 13 00 002)

Read out fault memory, clear if necessary.





Note:
The plug connection must be disconnected before the oxygen control sensor is removed.

If the plug connection separation point is below the cover for the fuel injectors:

If necessary, remove lower section of microfilter housing.

Remove cover from fuel injectors.

Unclip oxygen control sensor cable from retainer.

Disconnect plug connection for oxygen control sensor.

Release oxygen control sensor with special tool 11 7 020 11 7 020 Socket Wrench Socket WAF 22.





Installation:
The threads of new oxygen sensors are already coated with Never Seez Compound.

If an oxygen sensor is used again, apply a thin and even coat of Never Seez Compound (refer to BMW Parts Service) to the thread only.

Part of oxygen control sensor which projects into exhaust system branch must not be cleaned or come into contact with lubricant.





Installation:
Secure oxygen control sensor with special tool 11 7 020 11 7 020 Socket Wrench Socket WAF 22.

Tightening torque 11 78 1AZ 11 78 Emissions-Control, Lambda Oxygen Sensor.

Pay attention to cable routing of oxygen control sensor.