Catalytic Converter: Service and Repair

Exhaust Manifold, Front Exhaust Pipe and Catalyst With Attachments






1. Combi valve
2. 10 Nm (7 ft. lbs.)
3. 25 Nm (18 ft. lbs.)
4. 30 Nm (22 ft. lbs.)
5. 25 Nm (18 ft. lbs.)
^ Always replace
6. Connecting pipe
7. Union
^ 35 Nm (26 ft. lbs.)
8. 4-pin harness connector
^ Black
^ for Oxygen sensor 1 G39 and Oxygen sensor heating
^ Terminals 3 and 4 gold plated
9. Oxygen sensor 1 -G39 (in front of catalyst)
^ 50 Nm (37 ft. lbs.)
^ Only coat threads using antiseize compound not containing silicone and marked "safe for oxygen sensors"; do not allow compound to enter slots on sensor body
^ Remove and install using 3337
10. Oxygen sensor 2 -G130- (behind catalyst)
^ 50 Nm (37 ft. lbs.)
^ Only coat threads using antiseize compound not containing silicone and marked "safe for oxygen sensors"; do not allow compound to enter slots on sensor body
^ Remove and install with 3337
11. 4-pin - harness connector
^ Brown
^ Terminals 3 and 4 gold
^ for Oxygen sensor 2 G1 30 and Oxygen sensor heater
12. To center muffler
13. Front exhaust pipe with catalyst
14. 40 Nm (30 ft. lbs.)
^ Always replace
15. Support
16. Gasket
^ Always replace
17. Exhaust manifold
18. Warm air collector plate