11 78 510 Removing and installing/replacing control sensor (B48, B46)
Special tools required:
Only perform these tasks after exhaust system has cooled down.
Necessary preliminary tasks:
- Remove CLEAN AIR PIPE
Removal:
Unclip connector (1) of control sensor from holder.
Unlock and disconnect the connector (1) of the control sensor.
Release cable of control sensor from bracket inside the marked area.
Slightly bend up heat protection film (1).
Release control sensor (2) with special tool 11 7 020 .
Installation:
Installation note:
If an oxygen sensor is reused, thinly and evenly coat only the thread with NEVER-SEEZ COMPOUND 4.3 .
The part of the oxygen control sensor which projects into the exhaust branch (sensor ceramic) must not be cleaned or come into contact with lubricant.
Screw in control sensor (2) and tighten with special tool 11 7 020 .
Tightening torque: 11 78 1AZ .
Properly install heat protection film (1).
Connect connector (1) of control sensor and clip into holder.
Clip in cable of monitoring sensor on bracket inside the marked area.
Required follow-up work:
- Check function of DME.