Exhaust Manifolds With Primary Catalytic Converters and Attachments, Assembly Overview

Exhaust Manifolds With Primary Catalytic Converters And Attachments, Assembly Overview







1. Nut, 25 Nm
2. Nut, 25 Nm
3. Exhaust manifold
- For cylinder bank 1
- Removal is only possible when engine is removed
4. M8 25 Nm, M10 - 40 Nm
5. Heated Oxygen Sensor (HO2S) G39, 50 Nm
- Installed in the exhaust gas stream of cylinders 1, 2, 3 and 4
- Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
- Use ring spanner set for oxygen sensor 3337 for removal and installation
6. Primary catalytic converter
- Installed in exhaust stream of cylinder bank 1
7. Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 50 Nm
- Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
- Use ring spanner set for oxygen sensor 3337 for removal and installation
8. Catalytic converter
9. Suspended mount
- Installed location
10. 25 Nm
11. To middle muffler
12. Suspended mount
13. To middle muffler
14. Seal
- Replace
15. M8 - 25 Nm M10 - 40 Nm
16. Bracket
- For right transmission support
17. Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131 50 Nm
- Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
- Use ring spanner set for oxygen sensor 3337 for removal and installation
18. Heated Oxygen Sensor (HO2S) 2 G108 50 Nm
- Installed in the exhaust gas stream of cylinders 5, 6, 7 and 8
- Grease only the threads with "G 052 112 A3"; "G 052 112 A3" must not get into the slots on the probe body
- Use ring spanner set for oxygen sensor 3337 for removal and installation
19. Catalytic converter
20. Primary catalytic converter
- Installed in exhaust stream of cylinder bank 2
21. 25 Nm
22. Bracket
- For left transmission support
23. 25 Nm
24. Exhaust manifold
- For cylinder bank 2
- Removal is only possible when engine is removed
- Removing
25. Seal
- Replace
- Note installation position







Exhaust manifold, removing and installing
- To remove the exhaust manifold from cylinder bank 2, unfasten the bracket for the oil dipstick guide tube - 1 -.
- Then disconnect the refrigerant line - 2 - and close off the connections with a clean rag.







- Remove the nuts - arrows -.