11 34 560 Replacing all valve stem seals (N52)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 1 480 .
11 6 380 .

Necessary preliminary work:

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

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: Detaching Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For use on the N55 engine, special tool 11 6 380 must be re-machined according to the picture 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 Re-Machining Area On Special Tool (11 6 380)

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 For 5mm And 6mm Diameter Valves

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

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.