I found a company, Colorplus.com. They sell the most amazing leather rrestoration productrs I have ever used in the 60 years (today is BD). I was able to fix a tear in the leather with their product and some muslin material for back and leather glue Then their restorer. which they suppy the proper color dye for your Mercedes. There leather conditioner, has made my 26 year old leather seats as soft as a baby's A_ _. Amazing, I found them when I was going thrue some old article on our wonderful cars. Interestingly the article was 10 years old and the company is sitll in business. www.colorplus.com should get you there. Pricing is moderate, but well worh it IMHO opinion.