A6 Quattro Sedan V8-4.2L (BVJ) (2007)
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Engine Oil Check Valve: Locations
Oil check valve and spray nozzle valve, assembly overview
1. O-ring
^
Replace
2. Spray nozzle valve
3. Gasket
^
Replace
4. Cover
5. O-ring
^
Replace
6. Hose
^
For crankcase ventilation
7. Bolt
^
9 Nm
8. Bolt
^
9 Nm
9. Oil check valve
10. O-ring
^
Replace