Thanks to slk350NCLS63 for the original post. I am a new SLK owner and job no. 1 was to clean the cabin filter and freshen up the aircon system. It was smelly! I just wish I had read all the thread as I thought I had invented the idea od using double sided tape to hold the filter in place while putting back the cover. But I see that Dansslk had already done it! Anyway after cleaning the filter I used a can of STP aircon freshener to get rid of hte smells.
Really enjoying the car. Haven't had as good a car since my 1972 911T. But that was totally different of course. And after a 200 mile drive I knew about it.