Contact Corrosion
Contact corrosion can occur if incorrect fasteners (bolts, nuts, washers, etc.) are used.
For this reason, only fasteners with a special surface coating are installed.
In addition, rubber or plastic parts and adhesives are made of non-conductive materials.
If there are doubts as to whether parts are suitable or not, use new parts.
NOTE:
Use only original replacement parts that have been tested and are compatible with aluminum.
Use only Volkswagen accessories.
Contact corrosion damage is not covered under warranty.