11 78 510 Replacing Oxygen Control Sensors

11 78 510 Removing and installing/replacing control sensor (N14)

Special tools required:
^ 11 7 020

Warning:
Scalding hazard!
Only perform these tasks after the exhaust system has cooled down.

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





Disconnect plug connection for control sensor.
Release oxygen sensor (1) with special tool 11 7 020.

Tightening torque 11 78 1AZ. Specifications

Assemble engine.
Check function of DME.