11 34 560 Replacing all valve stem seals (N47 D20 O1)

Special tools required:

Necessary preliminary work:

Tap open valve stem seal (1) with special tool 11 1 480 or with a size 13 or 14 hexagon bit.

Remove valve stem seal (1) with a twisting and pulling action.

Fig 1: Identifying Valve Stem Seal

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Installation note:

The contact surface (1) must be clean.

Fig 2: Identifying Valve Stem Seal And Contact Surface

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Installation note:

Before installing the valve stem seals, the protective grommet must be fitted on the valve stem Risk of damage! to the sealing lip!

Press on valve stem seal (1) to stop using special tool 11 6 380 in direction of arrow.

Fig 3: Pressing Valve Stem Seal Using Special Tool (11 6 380)

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Assemble engine.