So I went to use the heat in my 06 coupe and it only blows hot when I'm on the gas. When I go to stop the air gets cold again. Any ideas?

 

The air mix motor that controls how much the flap opens to alow heated air to mix with outside air and all other HVAC system contols are operated by the A/C LAN computer. Dealer has way to get codes out and dtermine where the problem is.

 

Crap.

 

I have had this same issue before with my 06 coupe as well. I had air in my radiator and I had the system bled and it fixed this issue. Bleed the radiator first and see if that resolves your issue first before taking it to the dealership.

 

I'll try that first

 

something with the radiator