18 32 050 Removing and installing/replacing catalytic converter (N55)
WARNING:
Risk of burning!
Only perform this repair work after the exhaust system has cooled down.
Only perform this repair work after the exhaust system has cooled down.
Necessary preliminary work:
- Remove front UNDERBODY PROTECTION .
- Remove rear UNDERBODY PROTECTION .
- Remove EXHAUST SYSTEM .
- Expose monitoring sensor cable.
- Four-wheel drive vehicles only:
Remove REINFORCEMENT PLATE .
NOTE:
The oxygen sensor is in danger of being damaged when the catalytic converter is removed and installed.
REMOVE THE CONTROL SENSOR .
REMOVE THE CONTROL SENSOR .
Release nuts (1).
Tightening torque 18 20 1AZ .
Release clamp (1). The clamp must be renewed every time it is removed.
Tightening torque 18 31 2AZ .
In so doing, secure catalytic converter against falling out.
Feed out catalytic converter and remove.
Installation note:
Clean sealing surface. Renew clamp and seal.
Modify MONITORING SENSOR when replacing the catalytic converter.
Reassemble the vehicle.
Check exhaust system for leaks.