Rear Longitudinal Member Prepare For Installation - Ar64.20-P-1200-23ME

Model 167 

The following operation steps are shown on the left side of the vehicle. In case of damage on the right side of the vehicle, these steps must be performed analogously.

The higher-level service document as well as the safety information in the service document must be observed.

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1. Grind mating surfaces on rear longitudinal member (1) down to bare metal in crosshatched areas.
2. Remove grinding dust.

   Observe pretreatment of bonding surfaces.

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3. Grind mating surfaces at rear longitudinal member (1) down to bare metal on insides in cross-hatched areas.
4. Remove grinding dust.

   Observe pretreatment of bonding surfaces.

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5. Grind mating surfaces on rear longitudinal member (1) down to bare metal in crosshatched areas.
6. Remove grinding dust.

   Observe pretreatment of bonding surfaces.

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7. Grind mating surfaces at longitudinal member connecting part (3) down to bare metal in cross-hatched areas.

   Take into account pretreatment of bonding surfaces (areas A₁ , A₂ , A₃ ).

   Grind bonding surfaces on insides down to bare metal (area A₁ ).

   Take over precise positions of mating surfaces from old part (areas A₂ , A₃ ).

   Grind spot weld flanges down to bare metal on both sides (areas A₂ , B).

8. Remove grinding dust.
9. Apply zinc dust paint to insides of spot weld flanges (area B).
10. Grind mating surfaces on mounting support (4) down to bare metal on both sides in cross-hatched areas.

    Only grind mating surfaces down to bare metal on insides (areas B₁ ).

11. Grind mating surfaces at bracket (5) down to bare metal on both sides in cross-hatched areas.
12. Remove grinding dust.

    Observe pretreatment of bonding surfaces.

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13. Grind mating surfaces at previously removed bracket down to bare metal on insides in cross-hatched areas (areas C).
14. Grind plug weld points at previously removed bracket down to bare metal on both sides in cross-hatched area (area D).
15. Remove grinding dust.

    Observe pretreatment of bonding surfaces (areas C).

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16. Mark and cut separating point at cover plate (2) (area E).

    Transfer separating point from vehicle.

17. Cut off cover plate (2) along the stampings (areas F).

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18. Grind mating surfaces at cover plate (2) down to bare metal in cross-hatched areas.

    Grind bonding surfaces at insides down to bare metal (areas G).

19. Remove grinding dust.

    Observe pretreatment of bonding surfaces (areas G).

    Courtesy of MERCEDES-BENZ USA