11 78 610 Replacing monitoring sensor (N55)
Special tools required:
- 11 7 030
- 11 9 150
WARNING:
Risk of burning!
Work should only be carried out on an exhaust system that has cooled down.
Work should only be carried out on an exhaust system that has cooled down.
Necessary preliminary work:
- Remove rear ignition coil cover. See 12..... REMOVING AND INSTALLING/REPLACING REAR IGNITION COIL COVER (N55) .
- Remove the CATALYTIC CONVERTER .
Installation note:
The threads of new monitoring sensors are already coated with NEVER-SEEZ compound.
If a monitoring sensor is to be reused, apply a thin and even coating of NEVER-SEEZ compound to the thread only.
The part of the monitoring sensor which projects into the exhaust branch (sensor ceramics) must not be cleaned and not coated with lubricant.
Disconnect plug connection of monitoring sensor (1).
Installation note:
Cable color of control sensor = black.
Cable color of monitoring sensor = grey.
Remove monitoring sensor.
Tightening torque: 11 78 2AZ .
Reassemble the vehicle.
Check function of DME.