Catalytic Converter: Service and Repair

For removal and installation of a retrofit catalytic converter (uncontrolled), see Exhaust System, Service and Repair. Service and Repair

Removal:





1 Remove O2 probe, unscrewing holder (arrows) for this purpose, then push coupling in upward direction and separate. Unscrew O2 probe (16).





2 Loosen screws of flange connection (arrows) on exhaust manifold and unscrew.





3 Remove lateral support on transmission.





4 Loosen screws of flange connection (arrows) and unscrew.
5 Remove catalysts.

Installation:
6 For installation proceed vice versa.

NOTE: Prior to installing O2 probe, coat threads with hot lubricating paste, part No.000 989 88 51.

Tightening torque of self-locking hex. nuts is 20 Nm.