11 78 510 Replacing oxygen control sensors (N20)
WARNING: This page is about a different variant/trim than selected.
Special tools required:
- 11 4 260
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.
Installation note:
The threads of new oxygen control sensors are already coated with NEVER SEEZ COMPOUND 4.3 (refer to BMW Parts Department).
If an oxygen control sensor is to be reused, apply a thin and even coating of NEVER-SEEZ compound to the thread only.
Sensor ceramics not cleaned and not coated with lubricant.
Disconnect plug connection (1) of the oxygen sensors.
IMPORTANT:
When using special tool 11 4 260, it is essential to reduce the prescribed tightening torque by 3 Nm.
Release oxygen control sensor (2) with special tool 11 4 260 with a suitable extension (1).
Tightening torque 11 78 1AZ .
Reassemble the vehicle.
Check function of DME.