Stubborn dirt can be removed from carpets with household or special car shampoos, which are available in aerosol form for convenience - follow the manufacturer's instructions. Finally, vacuum the treated area and "ruffle" pile with a stiff brush.
Attention! Do not leave any electric heaters inside the passenger compartment to dry the cleaned upholstery!
Leather upholstery requires special care. Stains should be removed with a very mild soapy solution of warm water. The solution is applied with a soft cloth, then the surface is wiped dry. Never use alcohol, gasoline or other solvents to clean leather upholstery.
Avoid prolonged exposure to direct sunlight on the leather upholstery. Try to park in the shade, use sun shades, etc.