Dumb e46 question- how do I get hot air to come out the air vents? I see that I have a temperature dial in between the centre vents but I also have temperature buttons on my air con unit and neither seem to produce hot air :/
Leave the temperature buttons alone - they'll vary the vent temp automatically to achieve a comfortable temperature. If you want hot air as an over-ride, use the dial between the vents. If no hot air comes out with that set to hot, then fix your cooling system problem