You know, my wife went and took our digital camera with her to her sister's house when I finally had time to fix the blower. I ended up buying the brushes for about $6/
pr from carbonbrush.com vs. something like $20 from Mercedesshource or George Murphy at Performance Analysis. If you buy from George Murphy he does send you an instruction booklet that walks you through it. Might be worth the extra 14 bucks. I am not super familiar with the SLK 230 so I don't know how to get to the blower. Once you get that out, I imagine it would be about the same. Feel free to ask for help once you get the blower out. You can PM or email me if you like.