 I've owned my C230 for 14 years now, and the only reason I still own it is I couldn't sell it in good conscience with its flaws. The transmission was showing problems since new, but there were so many other problems that were more pressing when it was new (many pages in one visit) that I didn't notice that they left that one off. Then when it started to slip big time at 90K Mercedes refused to repair it. A mechanic at the dealership told me confidentially that it is a known problem. I complained to everyone, including the CEO of the entire company, and at every level in between, to no avail. This is my second that I bought new. Never again. Luckily this was not my only vehicle.