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

Model 205.0/1/2/3 

The following operation steps are shown on the left side of the vehicle on MODEL 205.0 and must be performed analogously on the right side in the event of damage.

1. Unscrew bolts (5) from rear longitudinal member (1).

   Courtesy of MERCEDES-BENZ USA

   Courtesy of MERCEDES-BENZ USA

2. Remove fixing rivet from rear longitudinal member (1) (areas H).
3. Mark separating point on rear longitudinal member (1) and cut (area A).

   Transfer separating point from vehicle and observe overlap of approx. 20 mm.

4. Model 205.0/1/3

   Grind mating surfaces on rear longitudinal member (1) down to bare metal in crosshatched areas (area J).

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 (areas J).

   Fig 1: Rear Longitudinal Member Removal Locations (Model 205.0/1/2/3)

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7. Model 205.0/1/3

   Grind mating surface on rear longitudinal member (1) down to bare metal in crosshatched area (area K).

8. Grind mating surfaces on rear longitudinal member (1) down to bare metal in crosshatched areas.

   Sand down mating surfaces to bare metal on inside (area B). Sand down spot weld flanges to bare metal on both sides.

9. Remove grinding dust.

   Observe pretreatment of bonding surfaces (area K).

   Courtesy of MERCEDES-BENZ USA

10. Grind mating surfaces on rear longitudinal member (1) down to bare metal in crosshatched areas.

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

11. Remove grinding dust.
12. Coat insides of spot weld flanges with zinc dust paint.

    Do not coat bonding surfaces with zinc dust paint (areas C).

    Otherwise adhesion problems may occur.

    Observe pretreatment of bonding surfaces.

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13. Mark separating point on lower crossmember (2) and cut (area E).

    Transfer separation point from vehicle.

    Fig 2: Lower Crossmember Location (Model 205.0/1/2/3)

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14. Grind mating surfaces on lower crossmember (2) down to bare metal in crosshatched areas.
15. Remove grinding dust.

    Observe pretreatment of bonding surfaces.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

    Upper crossmember (3), bottom 

16. Grind mating surfaces on upper crossmember (3) down to bare metal in crosshatched areas.

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

17. Remove grinding dust.
18. Coat insides of spot weld flanges with zinc dust paint.

    Do not coat bonding surfaces with zinc dust paint (areas D).

    Otherwise adhesion problems may occur.

    Observe pretreatment of bonding surfaces.

    Courtesy of MERCEDES-BENZ USA

19. Grind mating surfaces on end plate (4) down to bare metal in crosshatched areas.

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

20. Remove grinding dust.
21. Coat insides of spot weld flanges with zinc dust paint.

    Do not coat bonding surfaces with zinc dust paint (areas G).

    Otherwise adhesion problems may occur.

    Observe pretreatment of bonding surfaces.