Clean sealing surfaces
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
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 .
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)
.
- Remove the fine residue from the sealing surfaces of the cylinder head using the special tool 0 495 104 (11 4 472)
.
- Clean all the blind holes (1)
of the cylinder head.
- Remove the coarse residue from the sealing surfaces of the crankcase using the special tool 0 495 103 (11 4 471)
.
- 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.
CAUTION:
Swirling dirt particles caused by compressed air
.
Injury hazard!
Injury hazard!
- Collect dirt particles, e.g. when blowing out, use cloth to do so.
- Wear safety goggles.
- Clean all the threaded holes (1) of the crankcase with compressed air.
- Remove the special tool (B) contained in the set of special tools 2 364 711 .