Operation CHARM: Car repair manuals for everyone.

Contact Corrosion






Contact Corrosion

Contact corrosion can occur when incorrect fasteners (bolts, nuts, washers, etc.) are used.

For this reason, only fasteners with a special surface coating (Dachromet) are installed. These elements can be recognized by their green color.

In addition, rubber and plastic parts and adhesive are made of non-conductive materials.

If there are doubts as to whether parts should be reinstalled, install new parts.

Please note

Only use genuine Audi replacement parts. They have been checked and are compatible with aluminum.

Accessories must be approved by Audi AG!

Damage due to contract corrosion is not covered under warranty!