Hi all, noob here. I bought my wife her third Audi, a 2010 S4 Manual with 40k miles and notice that when the AC is on, the windshield will begin to fog on the outside after a while of driving. I've tried running though all the vent modes and air still comes through the defrost vents in the dash while blowing though the selected mode.

Is there a known issue? I searched forums and website but didn't find one. Has anyone come across this issue? Just trying to find a solution that doesn't include pulling the dash or giving Audi $2,500 to replace a diverter flap or motor else it will become a live with it issue.

Richard