Auto-Innenraum-Reiniger, a car interior cleaner. Properties. It is a washer for efficient, soft and quick cleaning of plastic parts and upholstery of a car interior. It perfectly removes marks of oils, fats, nicotine and other contaminants. It is also suitable to remove marks of beverages, sweets and other things. Application. For cleaning all the car cabin. Apply the cleaner on the surface and thoroughly rub with a wet sponge or cloth. Avoid cleaner drying. In case of heavy contaminants, repeat the process. Store at positive temperatures.