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 pushing coupling out of holder (arrow) in upward direction for this purpose and separate. Unscrew O2 probe (16).

Flange Connection, Left:

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

NOTE: Second screw is consealed by guide lever.

Flange Connection, Right:

3 Loosen screws of flange connection (arrows) and screw out.
4 Remove catalysts.





5 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.