11 34 560 Replacing All Valve Stem Seals (N54)
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 11 1 480
- 11 6 380
For the following special tools, refer to ENGINE- SPECIAL TOOLS .
Necessary preliminary tasks:
- Remove cylinder head . See 11 12 100 REMOVING AND INSTALLING CYLINDER HEAD (N54) .
- Remove inlet camshaft . See 11 31 025 REMOVING AND INSTALLING OR REPLACING INLET CAMSHAFT (N54) .
- Remove exhaust camshaft . See 11 31 028 REMOVING AND INSTALLING OR REPLACING EXHAUST CAMSHAFT (N54) .
- Remove roller cam follower . See 11 33 050 REMOVING AND INSTALLING/REPLACING ALL CAM FOLLOWERS (N54) .
- Remove all valve springs . See 11 34 715 REPLACING ALL VALVE SPRINGS (N54) .
Firmly press special tool 11 1 480 onto old valve stem seals.
Detach valve stem seal from valve stem by turning and simultaneously pulling special tool 11 1 480.
Installation:
Insert all valves . See 11 34 552 REMOVING AND INSTALLING OR REPLACING ALL VALVES (N54) .
NOTE:
For use on the N54 engine, special tool 11 6 380 must be remachined according to the sketch with a 10mm dia. drill bit to a depth of B = approx. 23 mm.
This modification has already been taken into account for reordering.
This modification has already been taken into account for reordering.
IMPORTANT:
Different diameters at valve stem.
All valve stem seals are color-coded.
All valve stem seals are color-coded.
Valve dia. 5 mm: valve stem seal is red or brown.
Valve dia. 6 mm: valve stem seal is green or light green.
Installation:
Fit the mounting sleeves (plastic sleeves) supplied in the spare part on the valve stem end
Lubricate mounting sleeve.
Press on valve stem seal by hand with special tool 11 6 380 as far as it will go.
NOTE:
Illustrations show N46.
Assemble engine.