I have a 535i and Im having problems with the Interior heating.
All I can get to come out of the floor vents is hot air, even if I turn the driver and passenger temp dials to cool. The middle vents put out cool air but they have their own temp dial.
I have looked through the Archives and all I can come up with is a possible sensor valve that could be stuck, possible ?
Anyone know how I can fix this, and is it going to be costly ?