When we got the Merc in 2011 it had pale sandy/stone leather.
Now almost 5 years on it is still amazingly clean, despite only occasional cleaning and feeding.
With the car we got a "Star Guard" leather care kit. In the kit is something that looks like solid stick deodourant, but is a stain remover which has successfully removed blue jeans dye and what I thnk was ball point pen stain.
No idea where to get it, but it seems to be a waxy based solid detergent. Talk to a leather care expert.
BUT to be honest I'm less than impressed with the Morgan leather quality. The Merc has 2x the milage of the Morgan and similar "sports" seats, yet there is NO surface wear on the side bolsters. My seats look like those in Pandy's post, same colour and equally scuffed.
I've treated them with the same leather dressing dye, with equally good results. But it shouldn't happen at 15 months and 20,000 miles.
