Dash air vents

[BRAD]

Question about the four dash vents.
Two middle one's blow out hot or atleast warm air, two outer ones have a constant flow of cold air no matter what the position of the cold air controll leavers.
I have four levers one for each heat exchanger and two others for either side of the front fresh air flaps.
All linkages are ok ect.
So why do I have unwanted cold air to the screen and how do I stop it and where is it coming from? :roll:

 

[Humphrey]

Maybe check your fresh air vents? Might not be sealing or even engaging with the control levers.

 

[67panel]

take off the grill and look to see if they are closing tight ,may need adjusting.also check the seals ,if nacked will let air in

 

[antoine]

also check your glovebox liner, i put in a repro plastic one without cutting the front face down and the control levers jam against it before the flaps close properly.