11 78 510 Replacing oxygen control sensor (N55) REP-REP-RAF1511N55-1178511 - V.2 (X6 xDrive 35i, X6 sDrive 35i)
Special tools required:
- 11 4 260
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 (refer to applicable BMW Parts Catalog).
If a oxygen control sensor is to be reused, apply a thin and even coating of Never Seez compound to the thread only.
The part of the lambda control sensor which projects into the exhaust system branch (sensor ceramics) must not be cleaned and not coated with lubricant.
Necessary preliminary tasks:
- Remove rear IGNITION COIL COVER .
- Remove PARTITION WALL of units compartment at center and right.
Disconnect plug connection on oxygen control sensor (1).
Installation note:
Cable color of oxygen control sensor = black.
Cable color of oxygen monitoring sensor = grey.
Release oxygen sensor (1) from above with special tool 11 4 260.
Tightening torque 11 78 1AZ .
Reassemble the vehicle.
Check function of DME.