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Separate upper front longitudinal member - AR62.20-P-1286-01CW

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Fig 1: Identifying Lower Front Longitudinal Member Spot Welds & Heated Areas
G07072789Courtesy of MERCEDES-BENZ USA

Shown on model 204 

  1. Expose spot welds on lower front longitudinal member (1) (areas A, B, C, D, E, F and G).
  2. Cut out spot welds on lower front longitudinal member (1) (areas A, B, C, D, E, F and G).

    IMPORTANT On model 204 drill Ø 6 mm spot welds (area F).

  3. Heat lower front longitudinal member (1) in crosshatched areas.

    IMPORTANT Crosshatched areas are bonded.

  4. Remove damaged lower front longitudinal member (1).
    Fig 2: Identifying Upper Front Longitudinal Member Spot Welds & Bonded Areas
    G07072790Courtesy of MERCEDES-BENZ USA

    Shown on model 204 

  5. Expose spot welds on upper front longitudinal member (2) and fender bracket (3) (areas H, I, J and K).
  6. Cut out spot welds on fender bracket (3) (area H).
  7. Remove fender bracket (3).
  8. Cut out spot welds on upper front longitudinal member (2) (areas I and J).
  9. Drill Ø 6 mm spot welds (area K).
  10. Cut upper front longitudinal member (2) at separation point (area L).
  11. Heat upper front longitudinal member (2) in crosshatched areas.

    IMPORTANT Crosshatched areas are bonded.

  12. Remove damaged front upper longitudinal member (2).
    Fig 3: Identifying Front Upper Longitudinal Member Spot Welds & Bonding Surfaces
    G07072791Courtesy of MERCEDES-BENZ USA

    Shown on model 204 

  13. Cut out spot welds on upper front longitudinal member remaining element (4) (area M).
  14. Remove upper front longitudinal member remaining element (4).
  15. Sand down connection surfaces on body to bare metal in cross-hatched areas.

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

  16. Remove drill shavings.
  17. Coat insides of spot weld flanges with zinc dust paint.

    NOTES Do not coat bonding surfaces with zinc dust paint to prevent adhesion problems (areas N, O, P and Q).

    IMPORTANT Observe pre-treatment of bonding surfaces.