Clean sealing surfaces

NOTE: RISK OF DAMAGE
Damage to the surface.
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage.

Do not use any metal-cutting tools.

Remove the coarse residue from the sealing surfaces of the cylinder head using the special tool 0 495 103 (11 4 471) .

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Remove the fine residue from the sealing surfaces of the cylinder head using the special tool 0495 104 (11 4 472) .

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Clean all the blind holes (1) of the cylinder head.

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Remove the coarse residue from the sealing surfaces of the crankcase using the special tool 0 495 103 (11 4 471) .

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Remove the fine residue from the sealing surfaces of the crankcase using the special tool 0 495 104 (11 4 472) .
Clean all the blind holes of the crankcase.

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CAUTION:
Swirling dirt particles caused by compressed air.
Injury hazard!
- Collect dirt particles, e.g. when blowing out, use cloth to do so.
- Wear safety goggles.
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Clean all the threaded holes of the crankcase in the marked areas with compressed air.
Remove special tool (B) from set of special tools 2 364 711 .

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