Install Rear Cross Member, Spare Tire Well And Longitudinal Member Connection Element And Weld In - Ar64.20-P-1200-35V

The following operation steps are shown on model 171.

1. Install rear cross member (3), spare tire well (4), longitudinal member connection element (2) with straightening tool (6), fit and fasten with mounting bolts (5).

   Bead edge (Y) on longitudinal member connection (2) should be aligned parallel to outer edge (X) on spare wheel well (4).

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   Courtesy of MERCEDES-BENZ USA

2. Drill Ø 6.7 mm rivet holes in spare tire well (4) and longitudinal member connection element (2) (areas G, H, I, J and K).
3. Drill Ø 6.7 mm rivet holes in longitudinal member connection element (2) (area Q).
4. Drill dia. 7 mm hole in longitudinal member connection element (2) (area A 1).
5. Remove rear cross member (3), spare tire well (4) and longitudinal member connection element (2).
6. Deburr rivet holes on both sides
7. Apply zinc dust paint to insides of riveted joints.

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8. Install rear cross member (3), spare wheel well (4), longitudinal member connection (2) with straightening tool, fit and fix in place.
9. Weld in rear cross member (3) with (areas L and M).
10. Rear cross member (3), longitudinal member connection (2) and spare wheel well (4) (areas O, Q, T, U and V).

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    Courtesy of MERCEDES-BENZ USA

11. Weld in rear cross member (3) on spare tire well (4) and longitudinal member connection element (2) with (areas U₁ and W).
12. Clean spot weld flange.
13. Remove shavings and drill chips.
14. Apply zinc dust pain to spot weld flange (areas U₁ and W).
15. Rivet longitudinal member connection (2) with Ø 6.5X12.5 rivets (area Q).

    Courtesy of MERCEDES-BENZ USA

    Courtesy of MERCEDES-BENZ USA

16. Rivet spare wheel well (4) and longitudinal member connection (2) with Ø 6.5X12.5 rivets (areas G, H, I, J and K).
17. Instal end plate (1), fit and fix in place.
18. Drill Ø 6.7 mm rivet holes (area E).
19. Remove end plate (1).
20. Deburr rivet holes on both sides.
21. Apply zinc dust paint to insides of riveted joints.

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22. Instal end plate (1), fit and fix in place.
23. Rivet end plate (1) on rear wheel well (7) with Ø 6.5X12.5 rivets (area E).
24. End plate (1) on rear wheel well (7) (area D).
25. End plate (1) on longitudinal member connection (2) RP  (areas A and AA).
26. End plate (1) on rear cross member (3) (area B)
27. End plate (1) from inside (area A1).

    Courtesy of MERCEDES-BENZ USA