I have 2002 Hyundai Elantra only one yr old.there is a horrible foul odour in my car.So bad that the odour can be smeeled outside of the car i bought my car to dealer they said that there's a mold in the air conditioner.And told me that you have to install the cabin filter which costs about $180.If anyone else has ever experienced this,please lead me in the right direction,please help!!