11 34 560 Replacing all valve stem seals (N62)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 1 380
11 6 370
11 6 380

Preliminary tasks are described in Disassembling and assembling cylinder head. Refer to 11 12 503 Disassembling and assembling cylinder head (N62) .

Press special tool 11 6 370 onto valve stem seal.

Fig 1: Pressing Special Tool Onto Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Withdraw valve stem seal by turning and simultaneously unscrewing special tool 11 6 370.

Installation:

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1380.

Fig 2: Installing Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

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

NOTE: For use on the N62 engine, special tool 11 6 380 must be remachined in accordance with the illustration with a 6.2 mm dia. drill bit to a depth of A = approx. 45 mm.
This modification has already been taken into account for reordering.

Fig 3: Modifying Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Pressing On Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.