Lubrication Components, Removing and Installing

Lubrication 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 (backup) 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 according to Repair Manual and/or Owner's Manual.

- After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar ©, switch-on the emergency (backup) battery for the Telematic/Telephone Control Module.

Note:
^ If large quantities of metal particles or other deposits (caused, for example, by partial seizure of the crankshaft or connecting rod bearings) are found in the engine oil when performing repairs, clean the oil passages thoroughly and renew the oil cooler in order to prevent further damage from occurring later.
^ ^Always replace O-rings, gaskets and oil seals when performing repairs.
^ The oil level must not be above the max. mark otherwise this can cause damage to the catalytic converter. Markings.

Crankcase breather and oil spray jets
Removing and installing oil pump, sump, oil filter and oil cooler , Refer to Oil pump engine, Service and Repair.





1. Bolt, tightening torque: 20 Nm
2. Washer
3. Tensioning roller
4. Bolt, tightening torque: 45 Nm
5. Idler wheel
^ For toothed belt
6. Bolt
^ M6 Tightening torque: 10 Nm
^ M8 Tightening torque: 20 Nm
7. Bolt, tightening torque 10 Nm
8. Breather housing
9. Gasket/breather - plate
^ Always replace
10. Oil check valve
^ Tightening torque: 25 Nm
11. Oil seal
12. Connector
13. Banjo bolt
^ Tightening torque: 15 Nm
14. Oil - distribution pipe
^ For oil spray jets for piston cooling
15. Cylinder block
16. Bolt, tightening torque 10 Nm
^ Apply locking fluid "D6" when installing
17. Oil spray jet
^ For piston cooling
18. Gasket
^ Metal gasket
^ Always replace
19. Oil - temperature sender (G8), tightening torque 10 Nm
^ For oil temperature gauge
^ White
^ If seal is leaking, cut open with pliers and replace.
20. Oil seal
^ Replacing, Refer to Seals and Gaskets, Engine, Camshaft oil Seal, Service and Repair.
21. Tensioner
^ Secure in position before removing, Refer to Fig. 1
22. Bolt, tightening torque: 10 Nm
^ Apply locking fluid "D6" when installing
23. Washer
24. Bearing bushing
^ For tensioning lever
25. Washer
26. Bolt, tightening torque: 25 Nm
27. Tensioning - lever
28. Bearing bushing
^ For tensioning roller





Fig. 1 Securing tensioner in position before removing
- Using a hex key, turn toothed belt tensioning roller-1- clockwise 8 mm in direction of arrow until tensioning lever 2- compresses tensioner -3- far enough to enable a 2 mm dia. spring pin to be inserted in drilling and in plunger.

Notes:
^ The toothed belt tensioner is oil damped and can only be compressed slowly by applying gradual pressure.
^ Use spring pin from 2024 A.

- Insert spring pin and release toothed belt tensioning roller.