How do you maintain a constant temperature? E90 320d ED

[finestjammy]

Hi All

I think I must be doing something wrong. All I'd like to do is maintain a temperature of 18c, should be simple. I set 18c on both sides and use 'auto'. What I can't figure out is how best to use the hotizontal adjustment knob between the high level central vents. If I set it to red/warm I'm often too hot, set it to blue/cold and I'm too cold. All I want is for the whole interior to be a constant 18c. Every other car I've had you just set the temperature, select auto and then leave for 3 years, I'm constantly having to adjust things with the BMW.

Am I missing something?

What's the best way to set it up?

[finestjammy]

Ah, interesting. I'd not thought of the middle option, it feels like there isn't a middle setting as such. I'll give it a go though.

[Mr-B]

Yeah you can leave the wheel in the middle so its not hot or cold. Or you can switch the middle vents off all together, just use the other controls to direct air to the windscreen and footwells only, that way you don't get a stream of hot or cold air in your face. (I'm talking about an e46 which I have but I am sure your system isn't that far removed from mine.)