11 34 560 Replacing all valve stem seals (N54)

WARNING: This page is about a different car, the 2010 BMW X6, 2009 BMW X6, and 2008 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 1 480
11 6 380

See ENGINE - SPECIAL TOOLS (N54, N63) .

Necessary preliminary tasks:

Remove cylinder head .
Remove inlet camshaft .
Remove exhaust camshaft .
Remove roller cam follower .
Remove all valve springs .

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 .

Fig 1: Detaching Valve Stem Seal From Valve Stem

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 2: Identifying Special Tool 11 6 380

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Different diameters at valve stem.
All valve stem seals are colour-coded.
Valve dia. 5 mm: valve stem seal is red or brown.
Valve dia. 6 mm: valve stem seal is green or light green.

Fig 3: Identifying Valve Stem Seals Color

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 4: Identifying Special Tool 11 6 380

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.