Hi, I have a 2000 S70 with 65k miles that when all A/C controls are in the defrost position, the air does not blow out against the windshield very much and a lot of air continues to blow out through the dash board vents. Does anyone have any suggestions as to what would cause this and how I go about diagnosing and fixing it? THANKS!

 

mine does the same

 

I think it may be an intermittent problem with the electronic climate control box. Now it seems to work fine.