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Home >> Mercedes Benz >> 2016 >> C450 AMG >> Repair and Diagnosis >> Collision >> General Collision Information >> Rear Wall & Rear End >> Testing & Repair >> Detach Rear End - Ar64.20-P-1020-01LW

Detach Rear End - Ar64.20-P-1020-01LW

MODEL 205.0/1 

Fig 1: Rear End Assembly Location (Model 205.0/1)
G13023327Courtesy of MERCEDES-BENZ USA
  1. Disconnect adhesive bead between spare wheel well and rear end assembly (1).

    With spare wheel well installed.

    IMPORTANT The rear end assembly (1) is bonded to the spare wheel well.

  2. Expose spot welds on rear end assembly (1) and cut out (areas A and B).
  3. Expose spot welds on rear end assembly (1) and drill with Ø 6.5 mm bit (areas C).
    Fig 2: Rear End Assembly Removal Locations (Model 205.0/1)
    G13023328Courtesy of MERCEDES-BENZ USA
  4. Expose spot welds on rear end assembly (1) and cut out (areas D and E).

    IMPORTANT Cut out spot weld through two panel thicknesses (areas E).

  5. Expose spot welds on rear end assembly (1) and drill with Ø 6.5 mm bit (areas F).
    G13023329Courtesy of MERCEDES-BENZ USA
  6. Heat rear end assembly (1) in crosshatched areas.

    IMPORTANT Cross-hatched areas are bonded.

  7. Remove rear end (1).
    G13023330Courtesy of MERCEDES-BENZ USA

    Shown on removed spare wheel well 

  8. Grind mating surfaces down to bare metal in the cross-hatched inner C-pillar sidewall.

    IMPORTANT Grind mating surfaces down to bare metal on insides (areas H).

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

  9. Remove grinding dust and drill chips.
  10. Coat insides of spot weld flanges with zinc dust paint.

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

    Otherwise adhesion problems may occur.

    IMPORTANT Observe pretreatment of bonding surfaces.