I have had an onging problem with musty stink from my HVAC unit when I start up. I plan to have a B service (42,000miles) next week and have asked to have this problem fixed once and for all. The service advisor said that they will spray some frigy fresh in it and it will fix it for a while. When I nicely complained that this did not seem like a long term fix and I was tried of the problem he said all cars have this problem. Well my wifes Volvo does not have or has it ever had this problem. Seems like they are giving me the run around. Would one of you techs please tell me what I should do? Is this a common problem? Can the duct be changed? The car NEVER drips water on the round is this part of the problem? Do i need to get more demanding and ask them to get help from regional or MBUSA? Have any members had this problem and gotten it completly fixed? Thanks fore your help and time.