2.2.2 Procedure for previously bonded aluminum component
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
- Sand off adhesive residue and layers of paint.
- Clean bonding surfaces with cleaning agent R1.
- Allow cleaned surfaces to dry for approx. 5 minutes.
Bonding surfaces must be completely dry.
- Flame spray the surface:
- Go over the bonding surfaces slowly with the flame.
- Avoid flaming with the blue part of the flame.
- Condensation water appears on the area that is still uncoated. The condensation water in the line of the flame must evaporate completely.
- Directly after flaming, coat the still hot bonding surfaces (approx. 50 °C) with primer.
- Apply primer:
- Apply primer with a brush, cotton or similar item.
- Allow the coated surfaces to dry for approx. 5 minutes.