Special tools required:
WARNING: This page is about a different car, the 2008 BMW 760Li and 2007 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
- 11 9 430. See 11 9 430 FIXTURE
- 11 9 432. See 11 9 430 FIXTURE
Necessary preliminary tasks:
- Remove left cylinder head. See 11 12 105 Removing and Installing Left Cylinder Head (N73)
- Remove right cylinder head. See 11 12 106 Removing and Installing Right Cylinder Head (N73)
- Remove left bearing bracket with inlet camshaft and intermediate shaft. See 11 37 012 Removing and Installing/Replacing Left Intermediate Levers (N73)
- Remove right bearing bracket with inlet camshaft and intermediate shaft. See 11 37 014 Removing and Installing/Replacing Right Intermediate Levers (N73)
- Remove left exhaust camshaft. See 11 31 036 Removing and Installing/Replacing Left Exhaust Camshaft (N73)
- Remove right exhaust camshaft. See 11 31 038 Removing and Installing/Replacing Right Exhaust Camshaft (N73)
- Remove all valves. See 11 34 560 Replacing All Valve Stem Seals (N73)
Place special tool 11 9 430 on cylinder head sealing faces. See 11 9 430 FIXTURE
To secure special tool 11 9 430, secure with the old cylinder head bolts and the supplied nuts. See 11 9 430 FIXTURE
Remove vent fitting on cylinder head.
Screw in special tool 11 9 432. See 11 9 430 FIXTURE
Connect pressure hose to pressure gauge.
Test pressure: 4.5 bar.
Immerse cylinder head in a water bath.
Check cylinder head for escaping air (cracks).
NOTE:
If necessary, add cleaning agent to water bath.
NOTE:
Replace cylinder head in event of cracking in water or oil area.
Assemble engine in reverse sequence to its disassembly.