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Remove firewall half - AR62.25-P-1110-01T

Fig 1: Identifying Cutting Templates (211 589 05 23 00)
G07508143Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Spot Weld Milling Cutter (201 589 00 51 00)
G07290434Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1002-01A Ball cutter, dia. 12 mm
WH58.30-Z-1006-01A Vario Drill WS 91 spot weld removing tool
WH58.30-Z-1001-03A Round wire brush, braided, dia. 70 mm
WH58.30-Z-1021-04A Cutting disk, dia. 65 mm, 80 m/s (max. 23,500 RPM)
WH58.30-Z-1001-40A Tarp (fire-resistant)
WORKSHOP EQUIPMENT

WE58.40-Z-1001-03A Drill (electric/pneumatic)
WE58.40-Z-1002-03A Straight grinder (electric/pneumatic)
WE58.40-Z-1004-03A Body saw (electric/pneumatic)
WE58.40-Z-1005-03A Wet/dry vacuum cleaner
WE58.40-Z-1001-05A Two-post lifting platform
Fig 3: Locating Separation Lines (Areas B, C And D)
G07508145Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  1. Mark separation lines (areas B, C and D).

    Dimension W approx. 200 mm

    Dimension X approx. 150 mm

    Dimension Z approx. 250 mm

  2. Cut separation points with body saw (areas B, C and D).

    IMPORTANT Do not damage floor located behind (area D).

  3. Separate reinforcement on longitudinal member with body saw (area B).
    Fig 4: Locating Separation Points (Area A) & Spot Welds (Area J)
    G07508146Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  4. Mark separation point (area A).

    Dimension y approx. 50 mm

  5. Cut separation points with body saw (area A).

    IMPORTANT Observe drive shaft tunnel.

  6. Expose spot welds (area J).
  7. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (area J).
    Fig 5: Locating Spot Welds (Areas E, F, G, H, I, K And L)
    G07508147Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  8. Expose spot welds (areas E, F, G, H, I, K and L).
  9. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (areas E, F, G, H, I, K and L).
  10. Remove firewall half with A-pillar and wheelhouse.
  11. Mark separation point (area M). Dimension X1 approx. 50 mm
  12. Separate paneling and longitudinal member with body saw (area M).
  13. Expose spot welds (areas K1, L1 and O).
  14. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (areas K1, L1 and O).
  15. Remove sections.
    Fig 6: Locating Separation Point (Area M) & Spot Welds (Areas K1, L1 & O)
    G07508148Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
    Fig 7: Locating Separation Points (Areas P, Q, T And U)
    G07508149Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  16. Mark separation points (areas P, Q, T and U).

    Dimension V approx. 50 mm

    Dimension xx approx. 50 mm

    Dimension xy approx. 100 mm

  17. Separate paneling with body saw (areas P and T).
  18. Separate reinforcement with body saw (area Q).
  19. Separate paneling and A-pillar center with body saw (area U).
  20. Expose spot welds (areas K2, R, S, AA and AB).
  21. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (areas K2, R, S, AA and AB).
  22. Remove sections.
    Fig 8: Locating Spot Welds (Areas AC, AD, AI, AJ, AK And AL)
    G07508150Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  23. Expose spot welds (areas AC, AD, AI, AJ, AK and AL).
  24. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (areas AC, AD, AI, AJ, AK and AL).
  25. Grind open weld seam on firewall half (area AM).
  26. Remove sections.

    IMPORTANT Cut out spot welds from rear (area AD).

  27. Expose spot welds (areas AE, AF, AG and AH).
  28. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (areas AE, AF, AG and AH).
  29. Remove section.
    Fig 9: Locating Spot Welds (Areas AE, AF, AG And AH)
    G07508151Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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