11 34 560 Replacing all valve stem seals (N55)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

Remove CYLINDER HEAD .
Remove INTERMEDIATE LEVER .
Remove ECCENTRIC SHAFT .
Remove INTAKE CAMSHAFT .
Remove EXHAUST CAMSHAFT .
Remove ROCKER ARM .

Press special tool 11 1 480 forcefully onto valve stem seals.

Detach valve stem seal from valve stem by turning and simultaneously pulling special tool 11 1 480 .

Installation note:

Insert all VALVES .

Fig 1: Pressing Special Tool (11 1 480) Onto Valve Stem Seals

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For use on the N55 engine, special tool 11 6 380 must be remachined according to the graphic with a 10 mm dia. drill bit to a depth of B = approx. 23 mm.

This modification has already been taken into account for reordering.

Fig 2: Identifying Special Tool (11 6 380) Dimension

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Different diameters at valve stem.
All valve stem seals are color-coded.

For 5 mm dia. valves, the valve stem seal is marked red or brown.

For 6 mm dia. valves, the valve stem seal is marked green.

Fig 3: Identifying Valve Stem Seals Color Code

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Fit the mounting sleeves (plastic sleeves) contained in the delivery specification on the valve stem end.

Lubricate assembly sleeve.

Press on valve stem seal by hand with special tool 11 6 380 as far as it will go.

NOTE: Graphic N42.

Fig 4: Pressing Valve Stem Seal Using Special Tool (11 6 380)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.