13 62 651 Removing/replacing oxygen sensor (N47 D20 O1)
Special tools required:
Only perform this repair work on an engine that has cooled down.
Necessary preliminary work:
- Read out the fault memory of the DDE control unit.
- Switch off ignition.
- Remove INTAKE FILTER HOUSING .
Disconnect connector (1) and release from bracket.
Release oxygen sensor cable from clamp (2).
Remove oxygen sensor (3) with special tool 11 7 020 .
Tightening torque: 13 62 3AZ .
Installation note:
Threads of new oxygen sensors are already coated with NEVER-SEEZ compound.
If an oxygen sensor is reused, only apply a thin and uniform coat of NEVER-SEEZ compound to thread.
Oxygen sensor section projecting into exhaust branch must not be cleaned or come into contact with lubricant.
Pay attention to cable routing of oxygen sensors.
11 7 020 Use special tool to tighten down oxygen sensor.
Tightening torque: 13 62 3AZ .
Cover oxygen sensors when applying underbody protection.
Installation note:
Check stored error/fault messages.
Delete fault memory.