Checking Underbody Anti-Corrosion Protection

The protective coating on the underbody should be checked carefully and touched up if necessary. You can do this yourself if you can safely raise and secure the vehicle (ramp or lift).

PROCEDURE

Thoroughly wash the underbody, see the following section.

Illuminate the entire underbody with a bright lamp and inspect the damaged areas.

Clean the damaged areas of the anti-corrosion coating with a scraper, spatula and wire brush down to bare metal.

Remove any beginning corrosion, if present.

Apply zinc primer paint from a spray can to the cleaned surface as an anti-corrosion primer.

Flat or large surfaces are treated with mastic, which can be applied with a brush.

For hard-to-reach seams and corners, it is better to use an aerosol can containing anti-corrosion protection.

Important: bitumen-based underbody anti-corrosion protection may only be refinished with bitumen material; polymer anti-corrosion protection in the wheel arches may only be refinished with PVC protection.

Note: only certain materials may be used for underbody anti-corrosion protection. Incorrectly selected products are aggressive toward the original anti-corrosion coating. Aerosols and pastes from Teroson, in addition to Audi/VW products, are suitable.

When applying anti-corrosion protection, cover the brakes with paper or polyethylene film to protect them from drops of coating material.

This chapter covers the interior trim of the Audi 80, i.e. the body components that belong to the passenger compartment.