MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: TaylorGTi on June 27, 2014, 07:54:09 pm
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Does anyone get less mpg using aircon?
It never made a difference in my past car (123d coupe) and was curious as my air cons broke so can't find out for my self :signLOL:
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I usually see a 1-2mpg difference...
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I usually see a 1-2mpg difference...
Same here, the difference is negligible.
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once I get mine fixed ill know :signLOL: trying to fix it my self first before I take it to a garage to resolve, bought a pressure switch, getting the correct spanner tomorrow, hmm diesel and aircon and then petrol and aircon,.. shouldn't be much of a difference? aircon in a diesel probably use less fuel?
EDIT: less fuel to run the aircon
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It used to be a 'rule of thumb' that aircons made fuel consumption worse by around 10%.
As improved compressor designs have made them more efficient, it's probably more like 5% these days.
Anything that the engine has to drive, whether it's a aircon compressor, an alternator, power steering pump (ok I know we haven't got those!) etc., will add a load and increase fuel consumption by a small amount.
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Only slight but it's definitely noticeable especially on a hot day when the system is working hard
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This is something I have tried to test myself... not the best conditions but I have definitely noticed 1 or 2 mpg less with it running. I just prefer to leave the window open.. can hear my car better that way :wink: