Separate A-Pillar Outer Section - Ar63.20-P-1102-01SRC

Model 453.4 

1. Expose spot welds on A-pillar paneling (1) and cut out (area A).
   Fig 1: A-Pillar Upper Spot Weld Locations

   Courtesy of MERCEDES-BENZ USA
2. Expose spot welds on A-pillar paneling (1) and cut out (area B, C, D, E and F).
   Fig 2: A-Pillar Lower Spot Weld Locations

   Courtesy of MERCEDES-BENZ USA
3. Heat A-pillar paneling (1) in crosshatched area with heat gun (area G).

   Crosshatched area is bonded.

4. Remove A-pillar paneling (1).
5. Remove remaining adhesive (area G).
6. Mark separating point on A-pillar outer section (2) and cut (area H).

   Do not cut too deeply.

   Otherwise the components below can be damaged and weakened.

   Dimensions:

   h = approx. 32 mm

7. Expose spot welds on A-pillar outer section (2) and cut out (area K).
   Fig 3: A-Pillar Outer Section Cut Area

   Courtesy of MERCEDES-BENZ USA
8. Expose spot welds on upper A-pillar outer section (3) and cut out (area M and N).
9. Expose MIG solder seam on upper A-pillar outer section (3) and grind off (area L). 9
   Fig 4: A-Pillar Outer Section Grind Area

   Courtesy of MERCEDES-BENZ USA
10. Expose spot welds on A-pillar outer section (2) and cut out (area O and P).
11. Remove A-pillar outer section (2) and upper A-pillar outer section.
    Fig 5: A-Pillar Outer Section Removal Area

    Courtesy of MERCEDES-BENZ USA
12. Sand down mating surfaces to bare metal in 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 paint (area R).

    Fig 6: Identifying Area R

    Courtesy of MERCEDES-BENZ USA

    Otherwise adhesion problems may occur.