Exhaust Manifold: Service and Repair
Exhaust manifold, front exhaust pipe and catalytic converter with attachments
Engine code: AEG
^ Engine codes AVH, AZG, BDC, BEV, BGD.
1. Combination valve
2. 10 Nm
3. 25 Nm
4. 40 Nm
5. 25 Nm
^ Replace
6. Connecting pipe
^ For secondary air inlet
7. Nuts/bolts, 60 Nm
8. Connector
^ Black, 6-pin
^ Gold plated contacts
^ For oxygen and oxygen sensor heating
9. Heated Oxygen Sensor (HO2S) -G39-*, 50 Nm
^ Grease only threads with hot bolt paste G 052 112 A3. Paste must not get into slots on sensor body
^ Remove and install with 3337
10. Oxygen Sensor (02S) Behind Three Way
^ Catalytic Converter (TWO) -G130-*, 50 Nm
^ Grease only threads with hot bolt paste G 052 112 A3. Paste must not get into slots on sensor body
^ Remove and install with 3337
11. 4-pin connector
^ Brown
^ Contacts 3 and 4 are gold plated
^ For oxygen and oxygen sensor heating
12. To center muffler
13. Front exhaust pipe with catalytic converter
14. 40 Nm
^ Replace
15. Support
16. Seal
^ Replace
17. Exhaust manifold
18. Warm air collector plate
Engine codes AVH, AZG, BDC, BEV, BGD
1. Warm air collector plate
^ With intake manifold support
^ With mounting for combination valve
2. Heated Oxygen Sensor (HO2S) -G39-*, 50 Nm
^ Grease only threads with hot bolt paste G 052 112 A3. Paste must not get into slots on sensor body
^ Remove and install with 3337
3. Connector
^ Black, 6-pin
^ Gold plated contacts
^ For oxygen and oxygen sensor heating
4. Combination valve
5. 10 Nm
6. 25 Nm
7. 25 Nm
^ Replace
8. 40 Nm
9. Connecting pipe
^ For secondary air inlet
10. Bolts, 60 Nm
11. 25 Nm
12. Retainer
13. Oxygen Sensor (02S) Behind Three Way
^ Catalytic Converter (TWO) -G130-*, 50 Nm
^ Grease only threads with hot bolt paste G 052 112 A3. Paste must not get into slots on sensor body
^ Remove and install with 3337
14. 4-pin connector
^ Brown
^ Contacts 3 and 4 are gold plated
^ For oxygen and oxygen sensor heating
15. Front exhaust pipe with catalytic converter
^ With anti-vibration element
16. 10 Nm
17. To center muffler
18. Heat shield
^ For catalytic converter
19. 5 Nm
20. Speed nut
^ Install from rear and press forward onto limit stop
21. 25 Nm
^ Replace
22. Seal
^ Replace
23. Exhaust manifold
24. Seal
^ Replace