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

18 32 060 Removing And Installing/Replace Catalytic Converter For Cylinders 4-6 (N54, N54T)







WARNING:
Risk of burning.
This repair work may only be carried out on an exhaust system which has cooled down.







Necessary preliminary tasks:
- Remove the catalytic cylinder 1-3.







NOTE:
The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.
Remove control sensor, cylinders 4 to 6.
Remove monitoring sensor, cylinders 4 to 6.







Unfasten clamp. In so doing, secure catalytic converter (1) against falling out.
Feed out catalytic converter (1) towards bottom and remove.

Installation note:
Clean sealing surface. Replace seal and clamp.
Tightening torque 18 31 3AZ.







Reassemble the vehicle.
Check exhaust system for leaks.