Table of contents: Mounting position of oil pressure… ↓ Removal and installation the piston… ↓
1. Additional holder. units. 2/3. O-ring: replace. 4. Screw: 4 Nm and tighten by 45°. 5. Control valve for piston cooling nozzles "N522". 6. Oil pressure sensor "F22": blue or gray insulation; 20 Nm. 7. Sealing cuff: replace. 8. Oil pressure sensor for low pressure "F378": brown insulation; 20 Nm. 9. O-ring: replace. 10. Gasket: replace. 11. Oil filter. 12. Sealing ring: replace, lubricate with oil. 13. Oil filter housing: 25 Nm. 14. Gasket: replace. 15/16. Sealing ring: - replace. 17. Valve block. 18. Oil radiator: follow the instructions, check for free space with adjacent parts. 19. Seal cuff: replace; moisten with coolant concentrate. 20. Connecting pipe. 21. Screw: 8 Nm and turn further by 45°. 22/23. Bolt.
Mounting position of oil pressure sensor, level 3 "F447"

Tightening torque: 20 Nm.
Removal and installation the piston cooling injector control valve "N522"
Disconnect connector "5" from the piston cooling injector control valve "N522", unscrew screw "6" and remove the piston cooling injector control valve "N522" "2".

Installation
Installation in reverse order. Replace the seal. rings. To prevent oil leakage, immediately install a new piston cooling nozzle control valve "N522" into the hole. Check the oil level.
[The original text is available on the website AudiManual.ru]
