Partially Remove Outer Longitudinal Member Inner Shell On Entrance - Ar63.30-P-1143-01SRA

Model 453.3/4 

1. Mark separating points on rear wheel well (1) and cut (areas A and B).

   Do not make the cuts too deep.

   Otherwise the components below can be damaged and weakened.

   Determine separating points according to damage profile.

2. Expose spot welds on rear wheel well (1) and cut out (areas C ₁ , C₂ and C ₃ ).
   Fig 1: Locating Areas C 1, C2 & C 3

   Courtesy of MERCEDES-BENZ USA
3. Remove rear wheel well (1).
4. Expose spot welds on reinforcement (2) and cut out (areas D ₁ and D₂ ).
   Fig 2: Locating Area D 1 & D2

   Courtesy of MERCEDES-BENZ USA
5. Remove reinforcement (2).
6. Expose spot welds on longitudinal member inner shell on entry (3) and cut out (areas E₁ , E₂ , E_3, and E₄ ).
   Fig 3: Locating Areas E1, E2, E3, & E₄

   Courtesy of MERCEDES-BENZ USA
7. Remove longitudinal member inner shell on entry (3).
8. Grind mating surfaces down to bare metal in the crosshatched inner C-pillar sidewall.

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

   Fig 4: Locating Grinding Areas

   Courtesy of MERCEDES-BENZ USA
9. Remove grinding dust and drill chips.
10. Coat insides of spot weld flanges with zinc dust paint.