A4 Sedan V6-3.2L (BKH) (2007)
Engine Oil Check Valve: Service and Repair
Oil check valves, oil separator, component overview
1 - O-ring
^
Replace
2 - Oil check valve, 20 Nm
^
For oil supply to right cylinder head
3 - 9 Nm
4 - Oil separator
5 - Gasket
^
Replace
6 - Cover
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With connection for crankshaft housing ventilation
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To remove, remove upper part of intake manifold and left and right lower parts of intake manifold
7 - O-ring
^
Replace
8 - Gasket
^
Replace
9 - 6 Nm
10 - Crankcase ventilation hoses
CAUTION! On US vehicles, crankcase ventilation must not be removed.
11 - 9 Nm
12 - Oil check valve, 20 Nm
^
For oil supply to left cylinder head