5 Series E34 525td (M51) TOUR
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Opening weld joints
1. Opening weld spots (resistance pressure spot welding):
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Set punch mark in center of weld spot. Set 8 mm dia. weld spot drill bit on punch mark and drill through top
metal sheet.
Or open weld spot with Vario Drill spot welding cutter (refer to Workshop Equipment & Planning CD, Chapter 7).
Note: Because the weld spots may have surface-hardened, grind them if necessary with an angle grinder and
paper grinding disk.
2. Opening laser weld seams:
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Place angle grinder with grinding disk on laser weld seam and grind through top metal sheet. Be careful not to cut
through and damage sheet metal underneath.
RA Opening weld joints
BMW AG - TIS
23.01.2013 07:54
Issue status (12/2007) Valid only until next DVD is issued
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