Remove non-greasy stains by carefully dabbing with a lint-free cloth or sponge wrung out in clean warm water. If necessary, clean by dabbing with soapy water. Finally, dab the surface with clean water. Finish by soaking up the moisture from the upholstery using a clean dishtowel and make sure it won't dye off and finish using a hairdryer. Clean leather versions with a dry cloth regularly. Treat the leather at least four times a year using only special leather treatment products. Clean powder-coated or chrome surfaces with a moist cloth. If necessary, use a dish soap on the cloth.