Replacing all valve stem seals (S63T2) (X5 M)

Special tools required:

11 1 380
11 6 370
11 6 380
11 1 480

IMPORTANT: Risk of damage to sealing lip on valve stem seal. Fit new valve stem seals only when all valves have been installed.

Necessary preliminary tasks:

Remove all VALVE SPRINGS .

Pull off valve stem seal (1) with special tool 11 1 480.

Simultaneous turning and pulling will pull off the valve stem seal.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Lubricate valve stem with oil and insert valve.

Installation sleeve 11 1 380 is included in the delivery specification for the valve stem seals.

Fit special tool 11 1 380.

Coat new valve stem seal (1) with oil and install.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For use on the S63TU engine, the special tool 11 6 380 must be remachined according to the sketch with a 6.2 mm drill bit dia. to a depth of (A) = approx. 45 mm.
This modification has already been taken into account for reordering.

Courtesy of BMW OF NORTH AMERICA, INC.

Manually press on valve stem seal as far as it will go with special tool 11 6 380.

Graphic N63.

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.