Turbocharger and Attachments, Removing and Installing

Turbocharger And Attachments, Removing And Installing

Part I







1. 40 Nm
- Coat threads with G 052 112 A3
2. Seal
3. 10 Nm
- Must not be loosened
4. Pressure unit
- For charge air pressure regulating valve
- Can only be replaced in conjunction with turbocharger
- Checking charge air pressure control.
5. Circlip
6. Turbocharger
- Checking charge air pressure control.
- Charge air pressure control valve and charge air pressure control valve vacuum unit are components of the turbocharger and cannot be replaced individually
- Fill turbocharger with oil via the connection before connecting the oil supply pipe
- After installing the turbocharger run engine at idling speed for approx. 1 minute and do not rev up, to check operation of the oil supply for the turbocharger.
7. O-ring
8. 10 Nm
9. Intake pipe
10. Gasket
- Note installation position
11. 20 Nm
12. Heat shield
13. 10 Nm
14. Banjo bolt, 30 Nm
15. 30 Nm
16. Coat threads and bolt head seating surface with G 052 112 A3
17. Exhaust manifold
18. Gasket
- Note installation position
19. 20 Nm
20. Banjo bolt, 30 Nm
21. 25 Nm
- Replace
- Coat threads with G 052 112 A3
22. Banjo bolt, 35 Nm
23. Coolant return pipe
24. 25 Nm
25. Spacer sleeve
26. Banjo bolt, 35 Nm
27. 10 Nm
28. Coolant supply pipe
29. Banjo bolt, 35 Nm
30. 30 Nm
- Only use genuine bolt from parts catalog
31. Retainer
- Between turbocharger and cylinder block
32. 25 Nm
33. Gasket
34. Gasket
35. 10 Nm
36. Oil return pipe
- To oil pan
37. 10 Nm
38. 10 Nm
- Do not alter setting
- Must not be loosened

Part II







NOTE:
- Components marked with an * are checked by the On Board Diagnostic (OBD).
- Components marked with ** are checked by the Output Diagnostic Test Mode.
- Observe installed position of heat protection mats

1. Overrun shut-off valve
2. Connecting pipe/hose
- to Recirculating valve for turbocharger -N249-
3. Pressure regulation valve
- for cylinder block housing ventilation
4. Connecting pipe/hose
- from deceleration shut-off valve to upper air guide hose
5. to cylinder block housing ventilation
6. from air filter
7. Upper air guide pipe
- Observe installed position of heat protection mat
- Vehicles with Engine Control Module AWP, AWW with quick release connection (with O-ring and securing brace)
- Vehicles with engine code AWD with screw clamp
8. Bracket
9. 40 Nm
10. 25 Nm
11. for connecting hose of connecting piece/charge air cooler at bottom
12. O-ring
- only vehicles with engine code AWP, AWW
13. Circlip
- Check seated securely
- only vehicles with engine code AWP, AWW
14. 10 Nm
15. from exhaust turbocharger/exhaust tube
16. Connecting pipe/hose
17. Connecting pipe/hose
- to pressure unit for Charge Pressure Regulation valve
18. Circlip
- Check seated securely
19. O-ring
20. Intake hose
- To intake tube of turbocharger
21. Wastegate bypass regulator valve -N75-*/**
- The valve will be activated from the engine control module (pulsed)
- Checking activation: