Oxygen Sensor: Service and Repair

(refer to Powertrain Management for Checking Function Of Digital Engine Electronics (DME))





Disconnect connector for oxygen sensor.
Unclip Lambda oxygen sensor cable from bracket.
Unfasten oxygen sensor.

Installation:
Coat thread of new oxygen sensors with Anti-Seize.
If one Lambda oxygen sensor is reused, only apply light coat of Loctite Anti-Seize to thread (obtainable from any specialist shop).
Do not allow any lubricant to make contact with the oxygen sensor section protruding into the exhaust section.





Installation: Tighten oxygen sensor with special tool 11 7 030.
Tightening torque, refer to Engine, Specifications.
Protect (mask) Lambda oxygen sensor when applying underseal.
Note cable routing of oxygen sensor.