Originally Posted by slackerjack
Thanks for your reply.
The car does not have a sunroof. Is it possible for me to check the exhauster vents for cracks, or is that better left to a professional?
Yes. You can at least check the trunk side of it. It's just a plastic frame with rubber door flaps. Remove the trunk liner on each side to access them. They should not be distorted, wrinkled or shrunken. To check the other side you may have to remove the rear fascia or at least the trim at the rear of the rear wheelhouse.