Prepare A-Pillar Inner Section For Installation - Ar63.20-P-1104-03SR

MODEL 453.3 

1. Scribe separating point on inner longitudinal member reinforcement (1) and cut (area U).

   Transfer separation point from vehicle.

2. Scribe separating point on inner longitudinal member (2) and cut (area T).

   Transfer separation point from vehicle.

3. Expose spot welds on upper A-pillar (4) and cut out (area S).
4. Grind mating surfaces on inner longitudinal member reinforcement (1), inner longitudinal member (2), lower A-pillar (3) and upper A-pillar (4) down to bare metal in crosshatched areas.

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

   Fig 1: Identifying A-Pillar Parts (1), (2), (3) & (4)

   Courtesy of MERCEDES-BENZ USA
5. Remove shavings and drill chips with wet/dry vacuum cleaner.
6. Coat insides of spot welding flanges with zinc dust paint.

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

   Otherwise adhesion problems may occur.