Inner Longitudinal Member Shell On Entrance Partial Preparation - Ar63.30-S-1143-02E

Model 447, 448 

1. Mark separation point on longitudinal member inner shell (1) and cut (area A).

   Transfer separation point from vehicle.

2. Grind mating surfaces down to bare metal in the cross-hatched inner C-pillar sidewall.

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

3. Remove shavings and drill chips.
4. Coat insides of spot weld flanges with zinc dust paint.

Courtesy of MERCEDES-BENZ USA