Completely Install A And B-Pillar With Longitudinal Member - Ar63.20-P-1120-03GQX

MODEL 166.8 

The following steps are shown on the left side of the vehicle and must be accomplished analogously on the right side in the event of damage.

1. Install inner front side wall (3) and side wall reinforcement (2) with portal bracket and fit.

   Use spacers.

2. Arrest inner front side wall (3).
3. Remove side wall reinforcement (2) and portal bracket.
4. Inner front side wall (3) (areas P₁ , P₂ , P₃ , P₄ , Q₁ , Q₂ , Q₃ and Q₄ ).
5. Coat weld joints which are later no longer accessible with zinc dust paint.

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6. Install side wall reinforcement (2) and fit with portal bracket.
7. Arrest side wall reinforcement (2).
8. Drill Ø 6.7 mm rivet holes in side wall reinforcement (2) (area S₁ ).
9. Remove side wall reinforcement (2) and portal bracket.
10. Deburr rivet holes on side wall reinforcement (2) on both sides.
11. Remove drilling chips.
12. Coat rivet holes with zinc dust paint.

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13. Remove foam part from old part and arrest on inner front side wall (3) with sealant (area U₄ ).
14. Apply sealant to foam parts (areas U₃ and U₄ ).

    Always replace damaged foam parts which can no longer be used. New foam parts are available only from the responsible Daimler AG departments (area U₃ ).

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15. Install side wall reinforcement (2) with portal bracket, fit and fix in place.
16. Rivet side wall reinforcement (2) with Ø 6.5x12.5 blind rivets (area S₁ ).
17. Side wall reinforcement (2) (areas R₁ and R₂ ).
18. Side wall reinforcement (2) (areas T₁ , T₂ , T₃ , T₄ and T₅ ).
19. Side wall reinforcement (2) (area S₂ ).
20. Grind inert gas welds down flat on side wall reinforcement (2) (areas R₁ and S₂ ).

    Grind down flat on contact surfaces on paneling and beaded area only.

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21. Install A and B-pillar paneling (1), roof frame paneling section (1.1) and longitudinal member cover section (1.2) with portal bracket, fit and fix in place.
22. Drill Ø 6.7 mm rivet holes in A and B-pillar paneling (1) (areas X₁ and X₂ ).
23. Remove A and B-pillar paneling (1) and portal bracket.
24. Deburr rivet holes on A and B-pillar paneling (1) on both sides.
25. Remove drilling chips.
26. Coat rivet holes with zinc dust paint.

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27. Install A and B-pillar paneling (1), fit and fix in place.
28. A and B-pillar paneling (1), roof frame paneling section (1.1) and longitudinal member cover section (1.2) (areas V₁ , V₂ , V₃ and V₄ ).
29. Rivet A and B-pillar paneling (1) with Polygrip Ø 6.4X14 countersunk head rivet (areas X₁ and X₂ ).
30. A and B-pillar paneling (1) (areas W₁ , W₂ , W₃ , W₄ and W₅ ).
31. Grind inert gas welds down flat on A and B-pillar paneling (1) (areas V₁ , V₂ , V₃ and V₄ ).

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32. A and B-pillar paneling (1) (areas Y₁ and Y₂ ).
33. Drill Ø 6 mm holes for plug welding with drill bit (area Y₃ ).
34. A and B-pillar paneling (1) (area Y₃ ).
35. Install roof paneling section (7), fit and fix in place.
36. Roof paneling section (7) (area Z₁ ).
37. Roof paneling section (7) (area Z₂ ).
38. Grind inert gas welds down flat on A and B-pillar paneling (1) and roof paneling section (7).

    Grind down flat on contact surfaces on paneling and beaded area only.

39. Remove shavings and drill chips.
40. Grind inert gas welds down flat on A and B-pillar paneling (1) (areas Y₃ , Z₁ and Z₂ ).
41. Solder surfaces on A and B-pillar paneling (1) with body solder and smooth.