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Sport mode button and fuel economy

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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TOMGREEN413
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Sport mode button and fuel economy

Post by TOMGREEN413 » Thu Dec 01, 2022 7:37 pm

This is getting embarrassing as I'm sure this question has been asked a million times by newbys ( although we've owned the 2014 Z for several years) .....does driving in sports mode increase fuel consumption ( based on the same driving style and throttle inputs with button off).
White e89 Red leather interior (But that's the wife's and don't I know it :/ )
Montego Blue Coupe manual si sport πŸ’™ (Faster than the above....much faster :)

Pondrew
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Sport mode button and fuel economy

Post by Pondrew » Thu Dec 01, 2022 7:46 pm

If it's an auto, yes, as it will hold gears for longer. If it's manual then it shouldn't, but probably will as the throttle response is quicker.

If you were to drive exactly the same in comfort and sport modes, there is little point in using sport mode IMHO. :)
All good things come to those who wait. I'm really impatient which explains a lot.

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Sport mode button and fuel economy

Post by Smartbear » Thu Dec 01, 2022 10:48 pm

Pondrew wrote: ↑Thu Dec 01, 2022 7:46 pm If it's an auto, yes, as it will hold gears for longer. If it's manual then it shouldn't, but probably will as the throttle response is quicker.

If you were to drive exactly the same in comfort and sport modes, there is little point in using sport mode IMHO. :)
It depends what engine, normally aspirated tend to be punished by using more rpm & forced induction cars fare worse with increased load (as it’s the load which brings in boost, not rpm’s)
Revving a turbo engine a bit higher can reduce consumption compared to changing up early and using the torque :thumbsup:
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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TOMGREEN413
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Sport mode button and fuel economy

Post by TOMGREEN413 » Fri Dec 02, 2022 9:00 am

Food for thought , my wife's is the 1.8 version so maybe the sport setting help the car get up n going better than maybe the more powerful versions? I have to say without using sport button it does feel quite gutless........
White e89 Red leather interior (But that's the wife's and don't I know it :/ )
Montego Blue Coupe manual si sport πŸ’™ (Faster than the above....much faster :)

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Sport mode button and fuel economy

Post by clarker63 » Fri Dec 02, 2022 9:21 am

get a remap. that'll give it some major oomph! :thumbsup:

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Sport mode button and fuel economy

Post by Smartbear » Fri Dec 02, 2022 9:25 am

TOMGREEN413 wrote: ↑Fri Dec 02, 2022 9:00 am Food for thought , my wife's is the 1.8 version so maybe the sport setting help the car get up n going better than maybe the more powerful versions? I have to say without using sport button it does feel quite gutless........
The sport button has the same effect on all of the versions :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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TOMGREEN413
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Sport mode button and fuel economy

Post by TOMGREEN413 » Fri Dec 02, 2022 7:43 pm

clarker63 wrote: ↑Fri Dec 02, 2022 9:21 am get a remap. that'll give it some major oomph! :thumbsup:
LOL!...had crossed my mind...but not sure the wife would be to bothered by the extra power. :rofl:
White e89 Red leather interior (But that's the wife's and don't I know it :/ )
Montego Blue Coupe manual si sport πŸ’™ (Faster than the above....much faster :)

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Sport mode button and fuel economy

Post by deltasierra » Fri Dec 02, 2022 8:44 pm

On an auto sport mode drops you 2 gears if you want to overtake, and holds onto the gears up to 5000 rpm with mine, no doubt it doubles fuel consumption too, but then it is a sports car.

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Sport mode button and fuel economy

Post by Nanu » Fri Dec 02, 2022 9:16 pm

When I had my 35is, I drove 200 miles to Birmingham which apart from the last 10 miles is all motorway and dual carriageway albeit with a couple of 50 limits. The next day drove back. One way in sport and the other not, but enjoying the drive, sticking to 70 of course :evil: Even tried one journey with the top down in the summer.

To be honest did not notice any difference in fuel consumption. This may be different if doing the same sort of test on purely country roads .
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