18 32 060 Removing and Installing/Replacing Catalytic Exhaust-Gas Converter for Cylinders 4-6

18 32 060 - Removing and installing/replacing catalytic exhaust-gas converter for cylinders 4-6 (N54)





Warning!
Scalding hazard!
Only perform these tasks after exhaust system has cooled down.





Necessary preliminary tasks:
- Remove catalytic converter 18 32 050 Removing and Installing/Replacing Catalytic Exhaust-Gas Converter for Cylinders 1-3 for cylinders 1-3





Note:
The oxygen sensors are in danger of being damaged when the catalytic exhaust-gas converters are removed and installed.
Remove control sensor 11 78 513 Replacing Both Oxygen Control Sensors, cylinders 4 to 6.
Remove monitor sensor 11 78 545 Removing and Installing/Replacing Monitor Sensor from cylinders 4 to 6.





Release clamp. Clamp must be replaced each time it is released.
Tightening torque 18 31 3AZ 18 31 Exhaust Pipe With Catalytic Converter / Complete System.
In so doing, secure catalytic converter (1) against falling out.
Feed out catalytic converter (1) and remove.

Installation Note:
Clean sealing face. Replace seal and clamp.
Align catalytic converter to exhaust system connection flange and tighten down.





Check exhaust system for leaks.
Add final details to vehicle.