Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Contact corrosion
Contact corrosion can occur if non-approved fasteners (bolts, nuts, washers), rivets, plugs, grommets or adhesives 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 color.
Rubber, plastic and adhesives also consist of non-conductive materials.
These approved parts are compatible with aluminum. They are also sold as spare parts.
If you are not sure whether used parts can be re-installed, always use new parts.
- Use only Genuine Audi Parts.
- Accessories must be approved by AUDI AG.
- Damage resulting from contact corrosion is not covered by the warranty.
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Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.