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Set of spacer blocks
The following steps are shown on model 257 except for code 414 (sliding roof).
Observe the higher-level service document as well as the safety information in the service document.
1 | Insert set of spacer blocks at undamaged side between center roof paneling (1) and side roof paneling and adjust dimension. |
So that the center roof paneling (1) can be adapted with the adjusted set of spacer blocks when installing. |
2 | Mark position of the set of spacer blocks on the vehicle and dimensions. |
3 | Determine dimensions from outer edge of center roof paneling (1) to outer edge of front and rear roof rack. |
4 | Mark positions of measuring points on vehicle and note dimensions. |
5 | Expose spot welds on center roof paneling (1) and cut out (areas A). |
6 | Expose spot welds on center roof paneling (1) and drill out with Ø 6,5 mm bit (areas B). |
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7 | Separate bonding of center roof paneling (1) in cross-hatched areas (areas C). |
Cross-hatched areas are bonded with adhesive. |
8 | Heat center roof paneling (1) in cross-hatched areas (areas D). |
Do not exceed a temperature of 120 °C. |
Cross-hatched areas are bonded with adhesive. |
9 | Remove center roof paneling (1). |
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10 | Remove remaining adhesive from the roof frame (areas E). |
Observe pretreatment of bonding surfaces. |
11 | Coat damaged points with primer. |
12 | Grind mating surfaces down to bare metal in remaining crosshatched areas. |
Sand down spot weld flanges to bare metal on both sides. |
13 | Remove grinding dust and drill chips. |
14 | Coat insides of spot weld flanges with zinc dust paint. |
Do not coat bonding surfaces with zinc dust (areas F). |
Observe pretreatment of bonding surfaces. |
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