Contact Corrosion

WARNING: This page is about a different car, the 2009 Audi A4. 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.

In addition, rubber or plastic parts and adhesive are made of materials that do not conduct electricity.

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.
Damage resulting from contact corrosion is not covered by the warranty.