11 12 112 Replacing both cylinder head gaskets (S65)
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Remove left cylinder head .
- Remove right cylinder head .
- Check cylinder head for leaks.
IMPORTANT:
Do not open screw plugs.
The screw plug must always be replaced if it is opened by mistake.
The screw plug must always be replaced if it is opened by mistake.
Installation:
Make sure oil bore (1) is clean.
NOTE:
Picture shows S85.
Check dowel sleeves (1) for damage and correct installation position.
Clean sealing faces with special tool 11 4 470.
Do not use any metal-cutting tools.
Check dowel sleeves (1) for damage and correct installation position.
Clean sealing faces with special tool 11 4 470.
Do not use any metal-cutting tools.
Remove spacer sleeves (1) in direction of arrow.
NOTE:
Picture show cylinder bank 2. Procedure for cylinder bank 1 is identical.
Remove non-return valves (1) in direction of arrow.
Installation:
Replace spacer sleeves (1) and non-return valves (2).
Note installation direction of non-return valves (2).
Replace head gasket (1) for cylinders 1-4.
Replace head gasket (1) for cylinders 5-8.
NOTE:
There is no oversize gasket for the S65 engine.
Assemble engine.