AC Off Feature
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From: Canada
2004 E500 / 2001 C240
AC Off Feature
This may be a dumb question but I remember from my other cars..
Does turing off the AC give the car more power? I remember from older cars that with the AC on the HP of the car went down..
Thanks.
Does turing off the AC give the car more power? I remember from older cars that with the AC on the HP of the car went down..
Thanks.
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From: SoCal
MB
i think it might add a little power, but i dont think its noticeable. i believe the car will just have to work a little harder, like rev harder, but the worst thing is gas mileage. in the E, we use AC because we cant really feel a difference, but in my personal car, i never turn on the A/C even if its 80+ just because it wastes to much gas, and makes my engine work noticably harder. same thing goes with windows unless at low speeds. GL
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From: Lone Star State.
W211 2005 CDI, X166 2013 350 BT, 997.1 2008 C4S
Originally Posted by bmms8
i think it might add a little power, but i dont think its noticeable. i believe the car will just have to work a little harder, like rev harder, but the worst thing is gas mileage. in the E, we use AC because we cant really feel a difference, but in my personal car, i never turn on the A/C even if its 80+ just because it wastes to much gas, and makes my engine work noticably harder. same thing goes with windows unless at low speeds. GL
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From: Sacramento
'08 AM Vantage V8 - '03 E500
The "windows down vs. A/C off" issue came up a few months ago on the NPR show "Car Talk." I don't exactly recall how the brothers came down on the issue, but it was something like: windows down-A/C off saves gas in slow driving, but takes more gas in highway driving.
On a slightly related issue, does the A/C compressor clutch automatically disengage the compressor when the driver depresses the accelerator enough, like in a forced downshift?
On a slightly related issue, does the A/C compressor clutch automatically disengage the compressor when the driver depresses the accelerator enough, like in a forced downshift?
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From: SoCal
MB
yea, i do keep my A/C on with the benz because usually our family is riding, so we have to put it on
but i remember on top gear 2-3 weeks ago, clarkson or whatever his name is drove a A8 diesel i believe 500 miles on one tank. he was driving and he said that the A/C supposedly uses up 10% more gas! and windows down was 5%? im not to sure though, but i do agree with saff because on the highway, it creates much more lag, my friend told me that over 45 mph, its better to use A/C, but i dont know how true that is.
but i remember on top gear 2-3 weeks ago, clarkson or whatever his name is drove a A8 diesel i believe 500 miles on one tank. he was driving and he said that the A/C supposedly uses up 10% more gas! and windows down was 5%? im not to sure though, but i do agree with saff because on the highway, it creates much more lag, my friend told me that over 45 mph, its better to use A/C, but i dont know how true that is.
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From: Lone Star State.
W211 2005 CDI, X166 2013 350 BT, 997.1 2008 C4S
Yeah. I hear your pain. Try Dallas from May-Sept. Right now 100 degree days are the norm. Gotta say, the summer veting feature is excellent and i use it all the time especially bc i park my car outside at work. Normal to be 140 degrees plus inside.
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From: Las Vegas, NV
2011 E350 Cabriolet..White and Almond Mocha
Originally Posted by saffrontiger
Yeah. I hear your pain. Try Dallas from May-Sept. Right now 100 degree days are the norm. Gotta say, the summer veting feature is excellent and i use it all the time especially bc i park my car outside at work. Normal to be 140 degrees plus inside.
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From: Las Vegas, NV
2011 E350 Cabriolet..White and Almond Mocha
Originally Posted by Ducman
LOL,yah,here in Cali 80 degrees is way to hot !!! 
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From: Canada
2004 E500 / 2001 C240
What I am thinking about is on a day when you don't need AC, I guess there is an advantage to turning it off to save gas.
The reason I want to know is off the line. Stopped at a light on takeoff, will there be an increase in torque or speed off the line?
Thanks.
The reason I want to know is off the line. Stopped at a light on takeoff, will there be an increase in torque or speed off the line?
Thanks.
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From: Sacramento
'08 AM Vantage V8 - '03 E500
That goes back to the question of whether the A/C compressor automatically disengages on full-throttle acceleration (or kickdown). If it does, you don't have to manually turn off the A/C. Logically, anything that uses power that would otherwise go to the rear wheels will decrease gas mileage and acceleration to some degree.
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From: NJ
'05 e320 cdi, '05 lexus rx330
Originally Posted by atssystems.com
What I am thinking about is on a day when you don't need AC, I guess there is an advantage to turning it off to save gas.
Thanks.
Thanks.
you're driving a 60k car and you're worried about losing a mile a gallon mpg? give it a rest!
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From: SoCal
MB
Originally Posted by kort677
you're driving a 60k car and you're worried about losing a mile a gallon mpg? give it a rest!
ats, off the line, if you are going to use a lot of power, or floor it, turn everything off, like the A/C and windows. those will considerably slow you down. GL
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From: Germany -> El Paso, TX right now
E-220CDI, VW Multivan 2.5TDI
Originally Posted by Nevada Jack
In Las Vegas...windows up, A/C on April thru October...gas milage is secondary... 
And just imagine - you not just save big $$$ you also lose some weight - and save the money you would spend on sauna. I never realized that saving money is THAT easy. By a simple press of a button you drive faster, save money and lose weight. Maybe we can get a patent for this multifuncional button.
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From: THE NAPA VALLEY, CA
Build date 2-04 E500
Hell, I'd be suprised if we were not getting better gas milage by getting sucked down the highway the way that "turbo prop" fan under the hood we all have in these E's spin...
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From: Palm Beach, FL
'03 Yukon XL Denali, '06 Eclipse GS
Originally Posted by atssystems.com
The reason I want to know is off the line. Stopped at a light on takeoff, will there be an increase in torque or speed off the line?
Thanks.
Thanks.
