Remove inner C-pillar side wall. - AR63.10-P-0700-01SC

Expose spot welds on outer C-pillar (2) and outer rear wheel well (3) and cut out (areas A, B, C and D).

Fig 1: Identifying Spot Welding Areas On Outer C-Pillar And Outer Rear Wheel Well (A, B, C And D)
Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Spot Welding Areas On Outer C-Pillar (A And B)
Courtesy of MERCEDES-BENZ USA
Expose spot welds on outer C-pillar (2) and cut out using BTR Usibor milling cutter (areas A₁ and B₁ ).
Grind open riveted joint on outer C-pillar (2) (area A₂ ).
Bend side wall reinforcement (4) to side, expose spot welds on outer C-pillar (2) and cut out (area E).
Heat outer C-pillar (2) and side wall reinforcement (4) in cross-hatched areas using hot air gun and remove damaged outer C-pillar (2) and side wall reinforcement (4).
Observe water drain hose.Cross-hatched areas are foamed and bonded. Damaged foam parts must be removed and replaced.

Fig 3: Identifying Outer C-Pillar And Side Wall Reinforcement Cross-Hatched Areas
Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Position Of Cut On Outer Rear Wheel Well Dimension And Scribe Area
Courtesy of MERCEDES-BENZ USA
Unclip water drain hose (6) and fasten outside of working area.
Measure position of cut on outer rear wheel well (3) according to dimension (f) and scribe (area F).
Dimension (f) is 20 mm.
Cut along cutting line on outer rear wheel well (3) (F).
Observe sheet metal below.
Expose spot welds on inner C-pillar (1) and cut out (area G).
Expose spot welds on inner C-pillar (1) and cut out (area H).
Expose spot welds on outer rear wheel well (3) and cut out (area J).
Heat damping mat on inner C-pillar (1) in cross-hatched area using hot air gun and remove.

Fig 5: Identifying Spot Welding On Inner C-Pillar Area (H)
Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Spot Welding And Clinch Connections On Inner C-Pillar Areas (N, O, P, Q And R)
Courtesy of MERCEDES-BENZ USA
Expose spot welds and clinch connections on inner C-pillar (1) and cut out (areas N, O, P, Q and R).
Cut out area (P) from inside.
Drill out spot welds in inner C-pillar (1) with dia. 6.0 mm bit (areas K, L and M).

Fig 7: Identifying Inner C-Pillar And Outer Rear Wheel Well Cross-Hatched Areas
Courtesy of MERCEDES-BENZ USA
Heat inner C-pillar (1) and outer rear wheel well (3) in cross-hatched areas using hot air gun and remove damaged inner C-pillar (1), strut (5) and outer rear wheel well (3).
Cross-hatched areas are bonded.

For all other operation steps, observe information on pretreatment of bonding surfaces.
Remove glue residues using round wire brush (areas S₃ , S₄ , S₅ , T, U and V)
Remove glue residues in area S₄ from inside.
Grind mating surfaces down to bare metal using round wire brush on both sides (areas S₁ , S₂ , S₃ , S₅ , S₆ , S₇ and U).
Grind mating surfaces down to bare metal using round wire brush on one side (areas S₄ , S₈ , T and V).
Grind area S₄ down to bare metal from inside.

Fig 8: Identifying Glue Residues In Cross-Hatched Areas
Courtesy of MERCEDES-BENZ USA
Remove glue residues in cross-hatched areas using stainless round wire brush and grind mating surfaces down to bare metal on one side (areas W and X).
Remove grinding and drill shavings using wet/dry vacuum cleaner.