I was told by my CA that the dial adjusts the temp by 3degrees hot or cold. So if you have the temp set at 67 and the dial all the way to the blue the temp is really 64 or all the way red its 70. This also allows the coldest temp in the car be 57 not just the 60 that it stops at.
I could be wrong but that was my belief. Someone read their manual. It is prolly well explained in there.
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retired 06 E90 325i
New: 09 VW Platinum Grey Jetta Sportwagen 2.0T SEL w/DSG, panoramic sunroof and Ipod adapter
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