I stand corrected!
Well I was parked next to an older SLK recently and decided the belt moulding on it looked like the belt moulding on my Crossfire. Then I saw a thread where someone had installed door cards on a Crossfire from an SLK and the fit was perfect so I ordered a belt moulding for an 03 SLK 320 from a MB parts supplier on line. It was about a hundred bucks and fit perfectly
Do you happen to have the Mercedes part#? Ive been looking for about a year as well. The center part of mine doesn't sit properly and is allowing water in that way and its not a pretty situation when driving in the rain. I don't drive often in the rain with his car but would still like to have it fixed. Thank you in advance