Diy Car Upholstery Cleaner Borax. (be sure to rinse and dry the item thoroughly afterward.) Mix together 1/2 cup of borax with 4 to 5 cups of water.
Be sure to do a spot test to ensure no unwanted color changes occur. Vacuum seats well, spray lightly with upholstery cleaner (1 cup of water or club soda, ½ cup white vinegar, ½ tablespoon of natural dish soap), let cleaner sit for 5 minutes, rub fabric in a circular motion with a soft brush or clean microfiber rag. Check out for mold cleaners.
You'll want to use equal parts rubbing alcohol and white vinegar.
Then, allow to dry for about 24 hours before using. Spray lightly with water and suck dry with a steam cleaner or. My favorite combo for a fresh clean scent is lavender oil and rosemary oil. Scrub into your floor mats and seats and then rinse clean.