Preparing Complete A-Pillar For Installation - Ar63.20-P-1100-09LC

MODEL 217.3 

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. Grind mating surfaces on A-pillar paneling (1) down to bare metal in crosshatched areas.

   Sand down spot weld flanges to bare metal on both sides.

2. Remove grinding dust.

   Do not coat bonding surfaces with zinc dust paint (area N₁ ).

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

   Courtesy of MERCEDES-BENZ USA

3. Grind mating surfaces on roof frame reinforcement (2) down to bare metal in crosshatched area.

   Sand down spot weld flanges to bare metal on both sides.

4. Remove grinding dust.

   Do not coat bonding surfaces with zinc dust paint (area S).

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

   Courtesy of MERCEDES-BENZ USA

   Courtesy of MERCEDES-BENZ USA

5. Mark separating point A-pillar reinforcement (3) and cut (area O).

   Transfer separation point from vehicle.

6. Grind mating surfaces on A-pillar reinforcement (3) down to bare metal in cross-hatched areas.

   Sand down spot weld flanges to bare metal on both sides.

7. Remove grinding dust and drill chips.
8. Coat insides of spot weld flanges with zinc dust paint.

   Do not coat bonding surfaces with zinc dust paint (areas N₂ , N₃ and N ₄ ).

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

   Courtesy of MERCEDES-BENZ USA

9. Mark separating point on offset reinforcement and cut (area P₁ ).

   Transfer separation point from vehicle.

10. Mark separating point on A-pillar inner panel (4) and cut (areas P₂ and Q).

    Take separation points from vehicle.

11. Grind mating surfaces on A-pillar inner panel (4) down to bare metal in crosshatched areas.

    Sand down spot weld flanges to bare metal on both sides.

12. Remove grinding dust and drill chips.
13. Coat insides of spot weld flanges with zinc dust paint.

    Do not coat adhesive surfaces with zinc dust paint (areas R₁ , R₂ , R₃ , R₄ and R₅ ).

    Otherwise adhesion problems may occur.

    Observe pretreatment of bonding surfaces.

14. Fabricate duplicator (8) from A-pillar inner panel remaining piece (4).

    Dimensions: 

    n = approx. 120 mm

15. Cut duplicator (8) in center (area M).
16. Grind insides of duplicator half down to bare metal.
17. Remove grinding dust.

    Observe pretreatment of bonding surfaces.

Courtesy of MERCEDES-BENZ USA