Remove partition wall from upper firewall - AR62.20-P-1221-01V

Fig 1: Identifying Spot Weld Milling Cutter (201 589 00 51 00)

Courtesy of MERCEDES-BENZ USA

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1002-01A	Ball cutter, dia. 12 mm
WH58.30-Z-1001-03A	Round wire brush, braided, dia. 70 mm
WH58.30-Z-1024-04A	Abrasive disk, dia. 115 mm, 80 m/s (max. 13, 250 RPM)
WH58.30-Z-1004-20A	Hot-air gun

WORKSHOP EQUIPMENT

WE58.40-Z-1001-03A	Drill (electric/pneumatic)
WE58.40-Z-1002-03A	Straight grinder (electric/pneumatic)
WE58.40-Z-1003-03A	Angle grinder (electric/pneumatic)
WE58.40-Z-1005-03A	Wet/dry vacuum cleaner

Fig 2: Identifying Welding Area On Partition Wall

Courtesy of MERCEDES-BENZ USA

1. Expose welding spots (areas A, B, C and D).
2. Cut spot welds out of partition wall (1) with spot weld milling cutter or spherical milling cutter (areas A, B and C).
3. Drill dia. 6.5 mm rivet holes in partition wall (1) (area D).
4. Heat partition wall (1) in shaded area with hot air gun Shaded area is glued
5. Remove damaged partition wall (1).
6. Sand connection surfaces down to bare metal in shaded areas.
7. Remove grinding and drilling chips with wet/dry vacuum cleaner.
   Fig 3: Identifying Shaded Area

   Courtesy of MERCEDES-BENZ USA