Special tools required:

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11 1 200
11 1 380
11 1 480
11 1 960

For identification of special tools, refer to ENGINE- SPECIAL TOOLS .

Preliminary tasks are described in Disassembling and assembling cylinder head. Refer to 11 12 503 Disassembling and assembling cylinder head - cylinder head removed (S54) .

Remove valve stem seal with special tool 11 1 480.

Fig 1: Removing Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.

S50 B32 and S54

Valve stem diameter 6 mm:

Installation:

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1 960.

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

Fig 2: Fitting Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Special tool 11 1 200 is used for valve stem diameters 6 mm and 7 mm.

Installation:

Press valve stem seal firmly home by hand with special tool 11 1 200.

Fig 3: Installing Valve Stem Seal

Courtesy of BMW OF NORTH AMERICA, INC.