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Home >> Mercedes Benz >> 2021 >> GLS450 >> Repair and Diagnosis >> Collision >> Body Panels >> Collision - Rear Wall And Rear End - 167 Chassis >> Rear Wall And Rear End Body Repair >> Rear Longitudinal Member Removal - Ar64.20-P-1200-22ME

Rear Longitudinal Member Removal - Ar64.20-P-1200-22ME

Model 167 

IMPORTANT The following operation steps are shown on the left side of the vehicle. In case of damage on the right side of the vehicle, these steps must be performed analogously.

The higher-level service document as well as the safety information in the service document must be observed.

G14791723Courtesy of MERCEDES-BENZ USA

Shown with removed inner side wall 

  1. Mark and cut separating point on cover plate (2) (area A).

    NOTES Do not cut too deeply.

    Otherwise the components behind can be damaged and weakened.

  2. Expose spot welds at striker plate (2) and cut off (areas B).
  3. Expose self-pierce rivets on cover plate (2) and drill out with Ø 6 mm (areas C).
    G14791724Courtesy of MERCEDES-BENZ USA

    Shown with removed inner side wall 

  4. Heat cover plate (2) in cross-hatched areas.

    IMPORTANT Cross-hatched areas are bonded with adhesive.

  5. Remove striker plate (2).
    G14791725Courtesy of MERCEDES-BENZ USA
  6. Expose spot welds at bracket and drill off with Ø 6.5 mm (areas E).
  7. Expose spot weld at bracket and drill out with Ø 6.5 mm (area F).
  8. Expose spot weld at bracket and cut off (area G).
  9. Remove bracket.
  10. Expose spot welds at body and drill off with Ø 6.5 mm (areas H).

    IMPORTANT Common spot welds on panels located one behind the other must be drilled off through two panel thicknesses.

    G14791726Courtesy of MERCEDES-BENZ USA
    G14791727Courtesy of MERCEDES-BENZ USA
  11. Expose spot welds at mounting support (4) and cut off through two panel thicknesses (areas I).
    G14791728Courtesy of MERCEDES-BENZ USA
  12. Expose self-pierce rivets at longitudinal member connecting part (3) and drill out with Ø 6 mm (area J1 ).
  13. Expose spot welds at longitudinal member connecting part (3) and drill out (areas J2 ).
  14. Expose spot welds at longitudinal member connecting part (3) and cut off (areas K).
    G14791729Courtesy of MERCEDES-BENZ USA
  15. Heat longitudinal member connecting part (3) in cross-hatched areas.

    IMPORTANT Cross-hatched areas are bonded with adhesive.

  16. Remove longitudinal member connecting part (3).
    G14791730Courtesy of MERCEDES-BENZ USA
  17. Expose self-pierce rivets at rear longitudinal member (1) and drill out with Ø 6 mm (areas L).
    G14791731Courtesy of MERCEDES-BENZ USA
  18. Heat rear longitudinal member (1) in crosshatched areas.

    IMPORTANT Cross-hatched areas are bonded with adhesive.

  19. Remove rear longitudinal member (1).
    G14791732Courtesy of MERCEDES-BENZ USA
  20. Grind mating surfaces down to bare metal in cross-hatched areas.
  21. Remove grinding dust and drill chips.

    IMPORTANT Observe pretreatment of bonding surfaces.

    G14791733Courtesy of MERCEDES-BENZ USA
  22. Grind mating surfaces down to bare metal in cross-hatched areas.

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

  23. Remove grinding dust and drill chips.

    IMPORTANT Observe pretreatment of bonding surfaces (areas M).

  24. Coat insides of spot weld flanges with zinc dust paint.
  25. Apply zinc dust paint to mating surfaces in cross-hatched areas.

    NOTES Do not coat bonding surfaces with zinc dust paint (areas M).

    Otherwise adhesion problems may occur.

    G14791734Courtesy of MERCEDES-BENZ USA
  26. Grind mating surfaces down to bare metal in cross-hatched areas.
  27. Remove grinding dust and drill chips.

    IMPORTANT Observe pretreatment of bonding surface (area N).

  28. Apply zinc dust paint to mating surfaces in cross-hatched areas.

    NOTES Do not coat bonding surfaces with zinc dust paint (area N).

    Weld point may not be coated with zinc dust paint (area O).

    Otherwise adhesion problems may occur.