11 34 560 Replacing All Valve Stem Seals (N62)

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. 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. See 11 12 503 DISASSEMBLING AND ASSEMBLING CYLINDER HEAD (N62/N62TU) .

Press special tool 11 6 370 onto valve stem seal.

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

Fig 1: Identifying Special Tool (11 6 370)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1 380.

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

Fig 2: Identifying Valve Stem Seal And Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

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: Identifying Special Tool (11 6 380)

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: Identifying Special Tool (11 6 380)

Courtesy of BMW OF NORTH AMERICA, INC.