Valve Guide Seal: Service and Repair

11 34 560 Replacing All Valve Stem Seals (M52 / S52 / M52TU / M54 / M56)

Special tools required
- 11 1 200
- 11 1 480
- 11 1 960

(Cylinder Head Removed)

Preliminary tasks are described in Disassembling and assembling cylinder head.
Remove all valve springs.






Remove valve stem seal with special tool 11 1 480.






Lubricate valve stem with oil and insert valve. Fit special tool 11 1 960.
Coat new valve stem seal (1) with oil and install.






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