Audi Repair: audi A4 condensation problems, condensation problems, demister

Question
On rainy/humid days, the windows condensate up. I've tried having the heater/demister on various settings but doesn't solve problems. Help please.

Answer
You could have a leaky windshield seal, or another leak into the car.  Check the area between the engine compartment and the passenger compartment.  Also check the riugs inside the car, do they feel wet?  Also does the Air conditioning work OK in the car?  Let me know,

Jan