Preparing Bonding Surfaces
WARNING: This page is about a different car, the 2023 Porsche Taycan and 2022 Porsche Taycan. However, it is still accessible from the selected car via links, so may be relevant.
Initial cleaning
Remove sticky, solid layers such as dirt and rust.
Cleaning
Then, clean the bonding flange areas using a lint-free cloth soaked in isopropanol or acetone until there are no more residues on the cloth.
Leave cleaned surfaces to dry off for 15 minutes; the bonding surfaces must be completely dry.