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Home >> Mercedes Benz >> 2018 >> SLC43 AMG >> Repair and Diagnosis >> Collision >> Body Panels >> Collision - Rear Wall & Rear End >> Testing & Repair >> Separate Rear Cross Member, Spare Tire Well And Longitudinal Member Connection Element - Ar64.20-P-1200-01V

Separate Rear Cross Member, Spare Tire Well And Longitudinal Member Connection Element - Ar64.20-P-1200-01V

G13842511Courtesy of MERCEDES-BENZ USA

IMPORTANT The following operation steps are shown on model 171.

  1. Expose spot welds on end plate (1) and rear wheel well (areas A, AA, B, C, D and E).
  2. Cut out spot welds on end plate (1) and rear wheel well (areas A, AA, B, C and D).

    IMPORTANT Cut out spot welds on rear wheel well from opposite side (areas C and D).

  3. Drill Ø 6.7 mm spot welds in end plate (1) and rear wheel well (area E).
  4. Remove damaged end panel (1)
  5. Coarsely mark longitudinal member connection (2) and cut (area F).

    NOTES Do not too deeply. Otherwise the longitudinal member connection reinforcement (2) below can be damaged.

    G13842512Courtesy of MERCEDES-BENZ USA
    G13842513Courtesy of MERCEDES-BENZ USA
  6. Expose spot welds on spare wheel well (4) and cut out (areas G and H).
  7. Expose spot welds on spare wheel well (4) and cut out (areas 1 and J).
    G13842514Courtesy of MERCEDES-BENZ USA
  8. Expose spot welds on spare wheel well (4) and longitudinal member connection (2) and cut out (area K).
    G13842515Courtesy of MERCEDES-BENZ USA
  9. Expose spot welds on rear cross member (3) and cut out (areas L and M).
  10. Remove rear cross member (3), spare wheel well and longitudinal member connection.
    G13842516Courtesy of MERCEDES-BENZ USA
  11. Mark separating point on longitudinal member connection (2) and cut (area N).

    NOTES Do not too deeply. Otherwise the longitudinal member connection reinforcement (2) below can be damaged.

    G13842517Courtesy of MERCEDES-BENZ USA
  12. Expose spot welds on longitudinal member connection (2) (areas O, Q, Q1, P, R, S and T).
  13. Cut out spot welds on longitudinal member connection (2) (areas O, Q, Q1 , S and T).
  14. Drill Ø 6.7 mm rivet holes in longitudinal member connection (2) (areas P and R).
  15. Remove remaining piece from longitudinal member connection elements (2).
    G13842518Courtesy of MERCEDES-BENZ USA
    G13842519Courtesy of MERCEDES-BENZ USA
  16. Grind mating surfaces down to bare metal in the cross hatched areas.

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

  17. Remove shavings and drill chips.
  18. Coat insides of spot weld flange with zinc dust paint.