When cleaning leather car seats, wipe the seats with a damp cloth first, perform a patch test on a small area, and apply the leather cleaner in circular motion. Leave the foam to penetrate the leather and wipe it off with a dry cloth.
Wipe leather seats with a damp cloth before cleaning to remove surface dirt. Use a patch test to determine whether the cleaning solution removes the dirt without discoloring the leather. You can buy commercial leather cleaners or use a homemade solution made of two parts linseed oil and one part vinegar. Spray the solution, rub it on the seat until it foams, wipe it off, and apply sunscreen on the dry seats.