11 78 610 Removing and installing/replacing lambda monitor sensors (N12)

WARNING: This page is about a different variant/trim than selected.

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

Necessary preliminary tasks:

Read fault memory.

Installation:

If an oxygen sensor is to be reused, only apply a thin and uniform coat of Never Seez Compound to thread.

The part of the oxygen monitor 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 monitor sensor.

Release monitor sensor (1) with special tools 11 7 030 and 11 9 150 .

Tightening torque: 11 78 1AZ .

Fig 1: Removing Monitor Sensor Using Special Tools (11 7 030) And (11 9 150)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.