What does the AC button do?
02-07-2007, 08:11 AM
#1
Contributors
Thread Starter
Join Date: Sep 2004
Location: East Coast
Posts: 883
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 530i 6 speed
I have been driving around for a while now with the Auto button on and the A/C button off, just for testing purposes (don't ask, just accept it - I wanted to see if it makes any difference in fuel consumption).
I assumed that this would mean that the airflow, blower, etc. would be regulated automatically, but the A/C compressor would stay off.
However, once in a while, the A/C stink will come on pretty strong, i.e., the A/C turns on although the green light on the button is never illuminated.
What am I missing here?
I assumed that this would mean that the airflow, blower, etc. would be regulated automatically, but the A/C compressor would stay off.
However, once in a while, the A/C stink will come on pretty strong, i.e., the A/C turns on although the green light on the button is never illuminated.
What am I missing here?
02-07-2007, 08:43 AM
#2
Members
Join Date: Jan 2007
Location: Seattle, WA
Posts: 215
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2007 530xi
Originally Posted by drjochen' post='388337' date='Feb 7 2007, 09:11 AM
I assumed that this would mean that the airflow, blower, etc. would be regulated automatically, but the A/C compressor would stay off.
However, once in a while, the A/C stink will come on pretty strong, i.e., the A/C turns on although the green light on the button is never illuminated.
However, once in a while, the A/C stink will come on pretty strong, i.e., the A/C turns on although the green light on the button is never illuminated.
02-07-2007, 01:26 PM
#3
Contributors
Thread Starter
Join Date: Sep 2004
Location: East Coast
Posts: 883
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 530i 6 speed
I thought that, too, but its totally random. It happend also on a nice, very cold, dry days, but not when the windows were fogged up (like last week).
03-08-2007, 09:42 AM
#4
Contributors
Join Date: Aug 2004
Location: Germany
Posts: 311
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2006, US Spec, 530i, Silver Gray, Black leather, Anthricite headliner, Steptronic, Navi Pro, PDC, Comfort Seats, Rear Heated Seats, Rear Shades, Folding Rear Seats, Bluetooth w/Blackberrt Torch, AUX Input, Bi-Xenon, AIB Angel Eyes w/matching fogs, summer wheels R118 w/PS2 tires, winter wheels R138 w/Michelin PA3 snows
i found that keeping the ac & auto on always was the best. i have no stink whatsoever anytime in almost 2 years
03-09-2007, 07:03 AM
#5
Contributors
Join Date: Sep 2006
Location: Hong Kong
Posts: 21,274
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Mini Cooper
Originally Posted by uglybear' post='388351' date='Feb 8 2007, 01:43 AM
I believe AC may be kicking in to reduce humidity.
and you will get about 3hp back for turning off the AC
03-11-2007, 04:55 PM
#6
Senior Members
Join Date: May 2006
Location: New Jersey
Posts: 827
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 06 530XI Sapphire Black, Black Int. 6sp, Cold, Prem
I read somewhere that you'll get better gas mileage with the AC on as compared to driving with the windows/sunroof open.
03-11-2007, 05:05 PM
#7
Members
Join Date: Dec 2006
Location: Pennsylvania
Posts: 128
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 530i
Model Year: 2006
That was on "Myth_Busters" a few months ago. Best gas mileage with windows closed & AC off. Second best; windows closed and AC on. Third; windows open and AC off and forth with windows open and AC on.
03-11-2007, 07:05 PM
#8
Senior Members
Join Date: Feb 2006
Location: Chino hills
Posts: 1,785
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by whentmets' post='401591' date='Mar 11 2007, 08:05 PM
That was on "Myth_Busters" a few months ago. Best gas mileage with windows closed & AC off. Second best; windows closed and AC on. Third; windows open and AC off and forth with windows open and AC on.
3 hp more huh pinghuk, and who came up with this number? Where do you get your information from?
03-11-2007, 07:39 PM
#9
Contributors
Join Date: Sep 2006
Location: Hong Kong
Posts: 21,274
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: Mini Cooper
Originally Posted by rjcastr' post='401655' date='Mar 12 2007, 11:05 AM
3 hp more huh pinghuk, and who came up with this number? Where do you get your information from?
Thread
Thread Starter
Forum
Replies
Last Post