Install Rear Floor - AR64.20-P-1300-04FR

Model 257 

Observe the higher-level service document as well as the safety information in the service document.

Courtesy of MERCEDES-BENZ USA

1. Install rear floor (1) and fix in place.

   Helper required.

   Spread the body a little for the installation.

2. Place vehicle on straightening bench and fasten.
3. Fit rear-end floor (1) with the straightener and fix in place.
4. Drill rivet holes on rear-end floor (1) with Ø 6.7 mm bit (areas A).

   Courtesy of MERCEDES-BENZ USA

   The following operations steps 5, 6 and 7 are shown on the left side of the vehicle and must be performed in the same way on the right side of the vehicle.

5. Mark positions for rivet holes on rear-end floor (1).

   Dimensions: 

   a₁ = 26 mm

   a₂ = 18 mm

   b₁ = 8 mm

   b₂ = 23 mm

   c₁ = 8 mm

   c₂ = 40 mm

   d₁ = 16 mm

   d₂ = 28 mm

   e₁ = 28 mm

   f₁ = 8 mm

   f₂ = 12 mm

   g = 12 mm

   Courtesy of MERCEDES-BENZ USA

6. Drill rivet holes on previously marked positions in rear-end floor (1) with Ø 6.7 mm bit (areas B).
7. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (area C).
8. Drill rear-end floor (1) with Ø 6.0 mm bit one panel thickness for plug welding (areas D).
9. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (area E).

   You must drill through the longitudinal member reinforcement behind it.

10. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (areas F₁ ).
11. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit through existing holes in body (area F₂ ).

    Courtesy of MERCEDES-BENZ USA

12. Drill rear-end floor (1) with Ø 6.0 mm bit one panel thickness for plug welding (areas G).
13. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (area H).

    You must drill through the longitudinal member reinforcement behind it.

14. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (areas l₁ ).
15. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit through existing holes in body (area 2). 

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

16. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (area J).

    Dimensions: 

    J= 28 mm

17. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit through existing holes in body (area K).

    Courtesy of MERCEDES-BENZ USA

18. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit (area L).
19. Drill rivet holes in rear-end floor (1) with Ø 6.7 mm bit through existing holes in body (area M).
20. Release vehicle from straightening bench, lift and remove straightening bench.
21. Remove rear-end floor (1) downward toward rear.

    Helper required.

22. Deburr rivet holes on rear-end floor (1) and on body on both sides.
23. Remove drilling chips.

    To maintain the curing and processing time specified in the instructions for the 2-component adhesive, it is necessary for at least 3 experienced workers to cooperate in performing the following operation steps. while dividing up the operation steps appropriately and performing them as concurrently as possible.

    In some cases it is necessary to have and use several sets of the required tools.

    Mark rivet holes and rivets in color to match one another.

    Courtesy of MERCEDES-BENZ USA

24. Apply 2-component adhesive to body in crosshatched areas.

    Observe pretreatment of bonding surfaces and manufacturer's specifications for drying and processing time of 2-component adhesive.

    Courtesy of MERCEDES-BENZ USA

25. Apply 2-component adhesive to body in crosshatched areas.

    Apply 2-component adhesive to the inside (areas S). Observe pretreatment of bonding surfaces and manufacturer's specifications for drying and processing time of 2-component adhesive.

    Courtesy of MERCEDES-BENZ USA

26. Apply 2-component adhesive to body in crosshatched areas.

    Apply 2-component adhesive to the inside (areas U).

    Observe pretreatment of bonding surfaces and manufacturer's specifications for drying and processing time of 2-component adhesive.

    For the following operation steps ensure that all rivets are first set and pulled before welding the areas in question.

    Courtesy of MERCEDES-BENZ USA

27. Install rear floor (1) and fix in place.
28. Place vehicle on straightening bench and fasten.
29. Align rear-end floor (1) with the straightener and fix in place.
30. Rivet rear-end floor (1) with Ø 6.4x12 rivet (areas R₁ ).
31. Rivet rear-end floor (1) with Ø 6.5x12.5 rivet (areas F₂ , R₃ ).

    Courtesy of MERCEDES-BENZ USA

32. Rivet rear-end floor (1) with Ø 6.5x12.5 rivet (areas S₁ , S₂ ).

    The operation step is shown on the left side of the vehicle and must be performed in the same way on the right side of the vehicle.

33. Rivet rear-end floor (1) with flow-form rivet structure 4 mm to 5.15 mm clamping range (S3) (area T1).
34. Rivet rear-end floor (1) with Ø 6.4x12 rivet (areas T₂ ).
35. Rivet rear-end floor (1) with Ø 6.5x12.5 rivet (areas T₃ ).
36. Rivet rear-end floor (1) with Ø 6.5x14.5 rivet (area T4).
37. Rear-end floor (1) (areas U₁ ).
38. Rear-end floor (1) (area U₂ ).

    Courtesy of MERCEDES-BENZ USA

39. Rivet rear-end floor (1) with flow-form rivet structure 4 mm to 5.15 mm clamping range (S3) (area V1).
40. Rivet rear-end floor (1) with Ø 6.4x12 rivet (areas V₂ ).
41. Rivet rear-end floor (1) with Ø 6.5x12.5 rivet (area V₃ ).
42. Rivet rear-end floor (1) with Ø 6.5x14.5 rivet (area V4).
43. Rear-end floor (1) (areas W₁ ).
44. Rear-end floor (1) (area W₂ ).

    Courtesy of MERCEDES-BENZ USA

45. Rivet rear-end floor (1) with Ø 6.4x12 rivet (area X₁ ).
46. Rivet rear-end floor (1) with Ø 6.5x14.5 rivet (area X₂ ).
47. Rear-end floor (1) (area X3).
48. Bend back sheet metal lugs.

    Courtesy of MERCEDES-BENZ USA

49. Rivet rear-end floor (1) with Ø 6.4x12 rivet (areas Y₁ , Y₄ ).
50. Rivet rear-end floor (1) with Ø 6.5x12.5 rivets (area Y₂ ).
51. Rivet rear-end floor (1) with Ø 6.5x14.5 rivets (area Y₃ ).
52. Rear-end floor (1) (area Y₅ ).
53. Bend back sheet metal lugs.

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

54. Rear-end floor (1) (areas Z).

    The operation step is shown on the left side of the vehicle and must be performed in the same way on the right side of the vehicle.