Oil check valves and spray jet valve, overview
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If irregular valve noise occurs repeatedly during short journeys and disappears after extended driving, the oil check valves must be replaced.
1 - O-Rings
- Always replace
2 - Oil check valve, 20 Nm
- For oil supply at left cylinder head
3 - Banjo fitting, 15 Nm
4 - Baffle
5 - Gasket
- Always replace
6 - Cover
- With connection for crankshaft housing ventilation
- Removing. Refer to intake manifold, removing and installing: Refer to Intake manifold, removing and installing
7 - 10 Nm
8 - Hose
- To pressure regulation valve of crankshaft housing ventilation
9 - Spray jet valve, 25 Nm
- For piston cooling
10 - Oil line
11 - O-ring
- Always replace
12 - Oil check valve, 20 Nm
- For oil supply at right cylinder head
13 - O-ring
- Always replace