41 00... Opening Adhesive Bonds

WARNING: This page is about a different car, the 2010 BMW 535xi, 2009 BMW 535xi, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Opening spot-weld bonds
- 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 .
  NOTE: Because the weld spots may have surface-hardened, grind them if necessary with an angle grinder and paper grinding disk.
- Heat connecting flange with a hot air blower.
  CAUTION: Extract vapors and gases.
- Release connection flange with chisel.
- Grind off residual adhesive from connecting flange.
  CAUTION: Wear a grinding dust mask.
Opening adhesive bonds on aluminium parts
- Remove punch rivets or blind rivets.
- Roughly cut out damaged component. The component can be peeled with the aid of pliers. If necessary, heat bonding flange with hot air blower.
  CAUTION: Heat only the damaged component with a hot air blower.
  
  Extract vapors and gases.
- Grind off residual adhesive from connecting flange.
  CAUTION: Wear a grinding dust mask.
- If engine carrier part replacement on the GRAV is carried out repeatedly, cut the damaged part at the existing cutting line. Heat bonding flanges with a hot air blower. Peel off remnants of expander elements with pliers.
Opening adhesive bonds on carbon-fibre-reinforced plastic parts
Procedure is described in detailed in the relevant repair instructions.