Prepare Rear Floor Assembly - Ar64.20-P-1300-02LWG

Model 253 

Model 293 

Courtesy of MERCEDES-BENZ USA

1. Grind mating surfaces on rear-end floor (1) down to bare metal in crosshatched areas.

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

2. Remove grinding dust.
3. Coat insides of spot weld flanges with zinc dust paint.

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

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

   Courtesy of MERCEDES-BENZ USA

4. Grind mating surfaces on rear-end floor (1) down to bare metal in crosshatched areas.

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

5. Remove grinding dust.
6. Coat insides of spot weld flanges with zinc dust paint.

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

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

   Courtesy of MERCEDES-BENZ USA

   Rear-end floor (1) bottom side 

7. Grind mating surfaces on rear-end floor (1) down to bare metal in crosshatched areas.
8. Remove grinding dust.
9. Drill holes for plug welding in rear-end floor (1) with a 6.7 mm bit (area C).
10. Remove drilling chips.

    Observe pretreatment of bonding surfaces.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

11. Drill holes for plug welding in rear-end floor (1) with a 6.7 mm bit (area D).
12. Remove drilling chips.