11 78 610 Replacing Oxygen Monitoring Sensors

11 78 610 Removing And Installing/Replacing Lambda Monitor Sensors (N16)

Special tools required:







WARNING:
Risk of burning.
Only perform these tasks after the exhaust system has cooled down.







Necessary preliminary tasks:
- Read fault memory.







Installation note:
If an oxygen sensor is to be reused, only apply a thin and uniform coat of Never Seez Compound (refer to BMW Parts Department) to thread.
The part of the oxygen monitoring sensor which projects into the exhaust system branch (sensor ceramic) must not be cleaned or come into contact with lubricant.







Disconnect plug connection for oxygen monitoring sensor.
Release monitoring sensor (1) with special tools 11 7 030 and 11 9 150.
Tightening torque: 11 78 1AZ.







Assemble engine.
Check function of Digital Engine Electronics.