Lubrication system — upper part of the oil pan (Audi A4 B8)

1. Pressure spring.
2. Leash.
3. Drive shaft oil. pump.
4. Upper part of the oil. pallet.
5. Wiring harness bracket; depending on the design.
6. Bolt: 9 Nm.
7. Oil pressure regulating valve "N428".
8. Bolt: 9 Nm.
9. Sealing element: 2 pcs.; replace.
10. Bolt.
11. Crankshaft oil seal on the belt pulley side.
12. Poly V-belt idler roller: install in the correct position.
13. Idler pulley cover.
14. Bolt.
15. Sealing flange on the pulley side.
16. Sealing ring: replace.
17. Oil pressure sensor "F22": switching pressure 2.0...2.5 bar; green insulation; check in "guided fault finding"; 20 Nm.
18. Lip seal: replace.
19. Bolt: 9 Nm.
20. Cork.
21. Sealing rings: replace.
22. Guide tube of the oil dipstick.
23. Bolt: 9 Nm.
24. Sealing ring: replace.
25. Gasket: replace.
26. Sealing rings: replace.
27. Gasket: replace.
28. Guide bushing: 2 pcs.
29/30. Bolt.
31. TDC mark screw plug: 35 Nm; unscrew and screw in with a long Allen key with a ball head.
32. Lip seal: replace.