Engine Lubrication: Service and Repair

Lubrication system components, removing and installing

CAUTION: Before beginning repairs on the electrical system:
^ Obtain the anti-theft radio security code.
^ Switch the ignition off.
^ Disconnect the battery Ground (GND) strap.
^ On vehicles equipped with Audi Telematics by OnStar, switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery.
^ After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows.
^ After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar, switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module.

Note:
^ If large quantities of metal shavings or abraded material are found in the engine oil while servicing the engine, the oil passages must be carefully cleaned to prevent resulting damage and the oil cooler must be replaced.
^ Oil level must not exceed max. marking - risk of catalytic converter damage!
^ Oil injector jet for piston cooling go to Fig. 1.





Part I - Oil pan (lower part), oil pump
1. Seal Always replace
2. 10 Nm
^ Tighten diagonally in sequence

3. Oil pan (lower part)

4. 10 Nm
5. Front baffle plate
6. 22 Nm
^ Always replace

7. 20 Nm plus and additional 90°(1/4 turn)
^ Always replace
^ Insert a new diamond disc item -9- between gear and chain sprocket.





8. Gear for differential gear shaft drive
^ Insert a new diamond disc item -9- between gear and chain sprocket.

9. Diamond disc Always replace
10. Drive chain for oil pump
^ Chain tensioner for drive chain go to item -16-

11. Drive chain gear for oil pump





12. Chain sprocket for oil pump
^ Installed position: Marking faces rear
^ Insert a new diamond disc item -9- between gear and chain sprocket.

13. Stud
^ Self-locking
^ Short threaded side to cylinder block

14. 10 Nm
15. O-ring
^ Always replace

16. Oil tube





17. O-Rings
^ Always replace

18. Oil tube
19. Bracket
^ For oil tubes

20. 10 Nm
21. O-ring
^ Always replace

22. Oil pump
^ With differential shaft

23. Rear baffle plate





24. 10 Nm
^ Self-locking Always replace

25. 20 Nm plus an additional 120°(1/3 turn)
^ Always replace
^ Insert with locking fluid Locking fluid:

26. Seal
^ Always replace

27. Oil drain plug, 30 Nm
28. 10 Nm
29. Oil level thermal sensor -G266-





Part II - Oil pan (upper part), oil filter
1. Torque support
2. 40 Nm
3. Stop
^ For torque support Adjusting:
^ Place impact for torque support on rubber buffer for torque support, letting it rest under its own weight and tighten bolts to 28 Nm.

4. 28 Nm
5. Seal
^ Always replace

6. Oil pressure switch -F1-, 1.4 bar, 25 Nm
^ Black insulation
^ Always replace O-ring





7. 12 Nm
8. Washer
9. O-ring
^ Always replace

10. Seal
^ Always replace

11. Locking bolt, 10 Nm
12. Seal
^ For crankshaft

13. 10 Nm
14. 30 Nm
^ Self-locking
^ Always replace

15. Sealing flange, front





16. -Chain tensioner
^ Use a diameter 3 mm drill bit to secure

17. Gasket
^ Always replace

18. 20 Nm
19. Guide tube for oil dipstick
20. Sheet metal screw
21. O-ring
^ Always replace

22. Oil filter housing
^ Follow filter change intervals
^ Use 3417 Oil filter wrench to remove
^ Follow installation notes found on oil filter
^ Tighten to 20 Nm





23. 30 Nm
24. Oil cooler
^ Observe note

25. Guide piece
^ With seal
^ Always replace

26. 10 Nm
^ Self-locking
^ Always replace

27. Top baffle plate
28. 45 Nm
29. M7 = 16 Nm, M8 = 22 Nm
30. Oil pan (upper part)





Fig. 1 Oil injector jet for piston cooling
1 - Bolt, 10 Nm
2 - Oil injector jet for piston cooling