A carbon body kit on the Audi RS7 isn’t just a visual statement — it’s a component chosen for precision and durability. The RS7 4K body kit from RNG Design is produced in pre-preg carbon or a painted finish, certified by TÜV Austria, and installed using the factory mounting points without any body modification. To make sure these parts last through the full warranty period and keep their appearance, they need regular but straightforward care. Here are the three essentials: washing, surface protection, and seasonal maintenance.
Washing
A glossy finish — whether carbon weave or painted — calls for careful handling right from the washing stage. A few rules help reduce the risk of scratches and dulling:
- Choose touchless washing or hand washing with a soft microfiber mitt — stiff brushes and automatic car washes can leave fine marks on the glossy surface.
- Use a pH-neutral car shampoo without harsh solvents — this matters especially for painted components.
- Pay attention to seams and edges: the front lip, bumper inserts, side skirts, and diffuser pick up more road grime than flat panels, so they deserve separate rinsing rather than a single pass with the sponge over the whole car.
- Dry the surface with a soft cloth rather than letting it air- or sun-dry — this lowers the chance of streaks on the gloss.
The RS7 C8 kit includes a front splitter, rear diffuser, side skirts, and front bumper inserts — all positioned below bumper level, where they come into contact with road chemicals, dust, and stone chips more often than other panels. These parts deserve priority attention when washing.

Surface Protection
After washing, the logical next step is protecting the gloss. Regularly applying wax or a ceramic protective coating helps maintain the shine of the carbon weave or painted surface and makes future washing easier, since dirt and road chemicals bond less to a treated surface. This matters especially for painted parts — RNG Design’s separate warranty on the paint finish covers this specifically, while the rest of the kit carries a longer warranty term.
If you’re planning to use abrasive polishing or aggressive chemicals that could damage the protective layer, check with your installer first to confirm this won’t affect your warranty terms. Warranty coverage applies when the kit is installed at a certified RNG Design center or a center recommended by the atelier, provided there’s no external damage or improper use.
One more recommendation: avoid prolonged contact between the surface and chemically aggressive substances — road chemicals, solvents, fuel — without rinsing them off immediately, to prevent damage to the protective layer or localized clouding of the gloss.

Seasonal Care
A change of season is a good reason for a more thorough inspection of the body kit, not just a routine wash:
- Fall–winter. After driving on roads treated with de-icing chemicals, wash the lower body elements — side skirts, diffuser, bumper inserts — more often than the upper panels, and don’t delay removing salt and grime.
- Spring. A good time to check fittings and seams after winter, and to refresh the protective coating if frequent washing has worn it down.
- Summer. Prolonged parking in direct sun speeds up the buildup of dust and insects on the surface — timely washing reduces the risk of stains setting in.
If reinstallation, part replacement, or a maintenance consultation is ever needed, RNG Design has installer partners in most regions, and parts can typically be fitted within a single working day. If there’s no partner in your city, the atelier will suggest the nearest available option or arrange a convenient installation format.