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Home >> Mercedes Benz >> 2021 >> C300 Base, 2D Convertible >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Collision - Side Wall - 205 Chassis 1 Of 2 >> Testing & Repair >> Cut Off A-Pillar - Ar63.20-P-1100-01LW

Cut Off A-Pillar - Ar63.20-P-1100-01LW

Model 205.0/1/2 

IMPORTANT The following steps are shown on the left side of the vehicle and must be performed on the right side in the same way in the event of damage.

G14186692Courtesy of MERCEDES-BENZ USA
  1. Mark separating points on A-pillar paneling (5) and cut (areas A and B).

    NOTES Do not make the cuts too deep.

    Otherwise the components below can be damaged and weakened.

    IMPORTANT Dimensions:

    a = approx. 100 mm

    b = approx. 238 mm

  2. Expose spot welds on A-pillar paneling (5) and cut out (areas C and D).

    IMPORTANT Cut out spot welds through two panel thicknesses (areas D).

  3. Heat A-pillar paneling (5) in cross-hatched areas (Areas T and U).

    IMPORTANT Cross-hatched areas are bonded.

  4. Remove A-pillar paneling (5).
    G14186693Courtesy of MERCEDES-BENZ USA
    G14186694Courtesy of MERCEDES-BENZ USA
  5. Mark separating points on A-pillar reinforcement (6) and cut (areas E and F).

    NOTES Do not make the cuts too deep.

    Otherwise the components below can be damaged and weakened.

    IMPORTANT Dimensions:

    e = approx. 120 mm

    f = approx. 253 mm

  6. Expose insert gas weld at A-pillar reinforcement (6) and cut (area G).
  7. Expose spot welds on A-pillar reinforcement (6) and cut out (areas H, I and J).

    IMPORTANT Cut out spot welds through two panel thicknesses (areas I).

    Cut out spot welds through three panel thicknesses (area J).

  8. Expose spot welds on A-pillar reinforcement (6) and drill with Ø 6.5 mm bit (area K).
    G14186695Courtesy of MERCEDES-BENZ USA
  9. Expose spot welds on A-pillar reinforcement (6) and cut out (areas L).
    G14186696Courtesy of MERCEDES-BENZ USA
  10. Heat A-pillar reinforcement (6) in cross-hatched areas.

    IMPORTANT Cross-hatched areas are bonded.

  11. Remove A-pillar reinforcement (6).
  12. Mark separating points on A-pillar inner panel (7) and cut (areas M and N).

    NOTES Do not make the cuts too deep.

    Otherwise the components below can be damaged and weakened.

    IMPORTANT Dimensions:

    m = approx. 40 mm

    n = approx. 90 mm

  13. Expose insert gas weld at A-pillar inner panel (7) and cut (area O).
  14. Expose spot welds on A-pillar inner panel (7) and cut out (areas P and Q).

    IMPORTANT Cut out spot welds through two panel thicknesses (areas Q).

    G14186697Courtesy of MERCEDES-BENZ USA
  15. Expose spot welds on A-pillar inner panel (7) and drill with Ø 6.5 mm bit (area R).
  16. Grind mating surfaces down to bare metal in the crosshatched inner C-pillar side wall.

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

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

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

    Otherwise adhesion problems may occur.

    IMPORTANT Observe pretreatment of bonding surfaces.

    G14186698Courtesy of MERCEDES-BENZ USA