I was a little annoyed to see the ivory white leather discoloured by my belts, but I guess I should have expected that. I cleaned it, but right where the perforated area of the leather stops and the thicker leather starts, I could not get it completely clean.
I thought I would try leather dye to fix that. I ordered a small bottle (the BMW code for ivory white leather is LZEW, by the way) from a dealer in the UK.
I followed the instructions (for once), cleaned the area lightly, and dabbed on two light layers of the dye in the affected area with some high density foam, left it overnight.
Worked very well; I cannot see any difference between that area and the rest of the seat. For once, a DIY job that turned out good....:smokin: