| Contact corrosion can occur if non-approved fasteners (bolts, nuts, washers), rivets, plugs, grommets, adhesives, etc. are used on the vehicle. |
| For this reason the manufacturer installs only fasteners with a special surface coating (Dachromet). These parts can be identified by their greenish colour. |
| Rubber, plastic and adhesives also consist of non-conductive materials. |
| These approved parts resist contact corrosion and are compatible with aluminium. They are also sold as spare parts. |
| If you are not sure whether used parts can be re-installed, always fit new parts. |
WARNING | t
| Only use Audi Genuine parts. |
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| Accessories must be approved by AUDI AG. |
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| Damage caused by contact corrosion is not covered under warranty. |
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