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Old 02-28-2013, 12:00 PM
Oliviam3 Oliviam3 is offline
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Location: Canada
Join Date: Feb 2013
Posts: 1
Mein Auto: M3 Cayenne F150
What's the purpose of this button on my E90 M3?

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Hi all, first time posting here (first time posting on any forum i believe )
Anyway, i've had this car for a long time, but never figured out the purpose for this particular button. This is also my first bmw, so please don't laugh too loud if my question is really dumb
I know what the button does (cooler air if roll towards blue, warmer air if roll towards red), but why? If all I want to do is adjusting temperature, why not just turn the knob and adjust the temperature setting?
i searched thru the manual, but don't think that button is even listed

Last edited by Oliviam3; 02-28-2013 at 12:03 PM.
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