[CREWZIN]

Welcome to the forum. Congrats on your new-2-you PT Cruiser. Yes, that musty smell has popped up many times before in the forums. If I remember right, it comes from inside the air-conditioning vents and ducting and Fabreeze was the quick answer by spraying it inside any access holes you can reach. It wasn't a long term solution though. There is an area where an outside-to-inside filter can be put in (they don't come with the car when purchased). It's behind the cowling under the hood on the passenger side. If you can get in there, try the Fabreeze and a new filter from the dealer.