Ive noticed the air from the drivers side windscreen vent is always luke warm, even when I have the temp guage down to full cold. As far as I can feel its the only vent thats doing it, seems ok from others...

I was wondering why I was getting so hot in the summer, I just put it down to it being a black car

What will be causing this ? Is this the heater sword thingy? I wonder if this could be related to my small coolant leak ?

Anybody with any knowledge on this?