Contact Corrosion
WARNING: This page is about a different car, the 2020 Audi A3, 2019 Audi A3, and 2018 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
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.
Rubber or plastic parts and adhesives are also made of non-conductive materials.
If there are doubts about whether parts can be used or not, then use new parts.
Note:
- Only original replacement parts are recommended. They are checked and compatible with aluminum.
- The use of Audi accessories is recommended.
- Contact corrosion damage is not covered under warranty.