LEXOL is proably the very best cleaner/conditioner and Leather preservative on the market today. It is sold by most MB dealers and is a bit expensive but works extremely well. They have a seperate cleaner/conditioner and a seperate dressing. Use both in the proper method and your seats will be fine for years to come. I work for a Chrysler dealer here in Maryland. I have been in the automotive dealer business for 44 years. Lexol is by far the very best product I have ever seen or used. It is all I will trust to my beloved Crossfire