Air Conditioning Performance?

Originally Posted by Me530

Considering the AC is electrical the engine power should have very little to do with its ability to cool, unless you have a faulty alternator. I am surmising here though.

The A/C compressor saps engine power. A big compressor and small engine don't go together will. I think that's what's being got at.

Originally Posted by April1

+1

Do you actually see the bars go down when the fan speed slows?
My lexus Sc 430 is truely an automatic climate control system. You can see the icons change as the fan speed changes as well as where the airflow is coming from. One thing I miss that BMW's don't have, an OFF button for climate control!

Originally Posted by tr7372

It does control fan speed. When you're in auto mode you have to make sure that the maximum fan speed isn't set too low. The five bars that are displayed for fan speed in auto mode act as a cap, so if you're on the 1st or 2nd bar the fan speed won't go above a relatively low setting. I keep mine on the 4th bar, and it very clearly starts at a high fan speed when the interior is hot and reduces the fan speed as the car cools down.

You can find a discussion here: http://x3.xbimmers.com/forums/showthread.php?t=684657

Do you actually see the bars go down when the fan speed slows?
My lexus Sc 430 is truely an automatic climate control system. You can see the icons change as the fan speed changes as well as where the airflow is coming from. One thing I miss that BMW's don't have, an OFF button for climate control!