11 34 560 Replacing all valve stem seals (N54, N54T)

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. 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 INTAKE 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 note:

Insert all VALVES .

Fig 1: Removing Valve Stem Seal Using Special Tool (11 1 480)

NOTE: For use on the N54 engine, special tool 11 6 380 must be remachined according to the sketch with a 10 mm drill bit dia. 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) Marking Dimension

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 (Red/Green)

Installation note:

Fit the mounting sleeves (plastic sleeves) supplied in the spare part on the valve stem end

Lubricate mounting sleeve.

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

Press on valve stem seal with special tool 11 6 380 by hand up to stop.

NOTE: Graphic shows N46.

Assemble engine.