Clean or shampoo the seats. Cleaning the seats is essential for a good detail. But different seats require different methods. Note that after cleaning, you may have to vacuum out the seats or surrounding area again, as dirt will be loosened up by this process. Cloth interiors: Interiors with nylon or other cloth can be shampooed with a wet-vac extraction machine. Cloth should be adequately dried after extraction has taken place. Leather or vinyl interiors: Interiors with leather or can be cleaned with a leather or vinyl cleaner and then hit softly with a leather brush. Cleaner can be wiped away with a microfiber cloth afterward.