Hello Apologies if this is a rather novice question but when its raining outside, the windscreen tends to get steamed up. Turning on the blower seems to fix it, but in the winter I tend to turn off the air conditioning (i.e. I press the A/C button) because I figure its not necessary. But as soon as I do that the windscreen starts to get steamed up again. I've tried blowing hot and cold air and it doesn't seem to make much difference (surprisingly!) unless I turn the A/C back on again. Not sure if this is related but we've noticed a slightly musty smell when the air conditioning is turned on that tends to dissipate after it's been running for a few minutes. This leaves me with a few questions, if anyone would be kind enough to chip in with their thoughts please: Is it normal that you have to have the air conditioning on to demist the windscreen (i.e. blower alone isn't enough)? My previous car didn't have air conditioning and I'm sure hot air was enough? What impact does using the air conditioning have on fuel consumption. When the car is idling you can hear when the air conditioning system kicks in and out, so I presume it must use some extra power/fuel? Thanks in advance for any advice!