Removing and installing oil retention valves and spray nozzle valve — AUDI

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

• Renewed: gaskets

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• Renew gaskets, seals and O-rings.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.

🔧 Engine codes this applies to

📋 Procedure

1. Remove intake manifold .
2. Remove oil filter housing .
3. Remove knock sensor (rear right) by unscrewing bolt (1).
4. Remove crankcase breather hose (arrow).
5. Unbolt cover (2) for oil retention valves.

6. Remove gasket.
7. Pull out oil retention valves (1) and (3).
8. Pull out spray nozzle valve (2). [Note: Renew gaskets, seals and O-rings.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
9. Install oil filter housing .
10. Install intake manifold .

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