Contact Corrosion
WARNING: This page is about a different car, the 2025 Audi A4 allroad and 2025 Audi A4 Quattro. 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 may be installed.
Furthermore, only rubber/plastic parts and adhesives made materials that do not conduct electricity are used.
If there are doubts about whether parts can be used or not, then use new parts. Refer to the appropriate Electronic Parts Information (ETKA).
Note:
- Only original replacement parts are recommended. They are checked and compatible with aluminum.
- The use of genuine Audi accessories is recommended.
- Contact corrosion damage is not covered under warranty.