Install rear inner wheelhouse - AR63.10-P-0670-04SX

The following operation steps are shown on model 221 on the left side of the vehicle and must be performed analogously on the right side in the event of damage.

Fig 1: Installing Rear Inner Wheelhouse

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1. Install rear inner wheelhouse (1), fit with straightening tool (2) and fasten with clamping pliers.
2. Drill dia. 6.5 mm rivet holes in inner rear wheelhouse (1) (areas A, B, C, D and E).
3. Drill dia. 6.5 mm rivet holes in inner rear wheelhouse (1) (area D₁ ).
4. Lower straightening tool (2).
   Fig 2: Identifying Rivet Holes In Inner Rear Wheelhouse Area

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5. Remove inner rear wheelhouse (1).
6. Deburr rivet holes on both sides
7. Coat insides of rivet connections not glued with zinc dust paint.
8. Install support (3) and fasten.

   Support (3) should be of a stable material, e.g. wood. The length of the material corresponds to the undamaged side of the vehicle (approx. 500 mm).

   Fig 3: Identifying Support & Adhesive Areas

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9. Apply 2-component adhesive in cross-hatched areas.

   Observe pretreatment of bonding surfaces.

   Refer to manufacturer specifications for adhesive curing and application times.

10. Remove support (3).
11. Install inner rear wheelhouse (1), fit with straightening tool (2) and fasten with manual temporary fasteners and clamping pliers.
    Fig 4: Identifying Inner Rear Wheelhouse Spot Weld Areas (F, G, H, I, J, K And L)

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12. Inner rear wheelhouse (1) (areas F, G₁ , G₂ , H, I, J, K and L).
13. Remove straightening tool (2) and MZ element (4).
14. Inner rear wheelhouse (1) (areas F, G₁ , G₂ , M, N and O).

    Supplement resistance spot welds, covered by MZ element (4), and straightening tool (2) (areas F and G₂ ).

    Fig 5: Identifying Inner Rear Wheelhouse Spot Weld Areas (F, G, M, N And O)

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15. Inner rear wheelhouse (1) (areas P, Q and R).
    Fig 6: Identifying Inner Rear Wheelhouse Gas Seam Weld Areas (P, Q And R)

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16. Rivet inner rear wheelhouse (1) with Polygrip flat/round head rivet, 6.4x14 dia. (areas A, B, C, D and E).
    Fig 7: Identifying Inner Rear Wheelhouse Polygrip Flat/Round Head Rivet Areas (A, B, C, D And E)

    Courtesy of MERCEDES-BENZ USA

    Blind rivet tool, see GOTIS.

17. Rivet inner rear wheelhouse (1) with Polygrip flat/round head rivet, 6.4x14 dia. (area D₁ ).

    Blind rivet tool, see GOTIS.

    Fig 8: Identifying Inner Rear Wheelhouse Polygrip Flat/Round Head Rivet Area (D1)

    Courtesy of MERCEDES-BENZ USA
18. Clean welds using round wire brush.
19. Remove grinding and drill shavings using wet/dry vacuum cleaner.