|
|
|
2010 2011 BMW 5 Series Forum F10 Confused about fuel consumption…. |
|
Post Reply |
|
Thread Tools | Search this Thread |
09-22-2014, 08:23 AM | #1 |
First Lieutenant
164
Rep 392
Posts |
Confused about fuel consumption….
So the onboard computer on the F10 shows the distance that can be travelled with the remaining fuel as 703kms but the average mileage it shows is 3.9km/l. I do mostly city driving so thats fine…but I don't understand how its showing a range of 700kms! since the fuel tank is only 70litres. Isn't the distance to empty calculated based on the average fuel consumption? Also for the 550i…when the fuel warning light first comes on whats your remaining range to empty on average? Mine came on yesterday and it showed 90kms range remaining…Also I had reset the whole computer recently…could this be the reason for all this and maybe it needs more time to give a more accurate range?
Last edited by BMW FOREVER; 09-22-2014 at 10:40 AM.. |
09-22-2014, 08:55 AM | #2 | |
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
Don't understand how it is giving you the figures you show, but the range/distance remaining is a rolling calculation of the current, not accumulated consumption. Hence why see can see some very encouraging figures if we fill, say after a light drive on the highway, compared to stop and start ahead off a fill. Long term mpg may not change much, if at all, but the range figure can be changing up or down as we drive. HighlandPete |
|
Appreciate
0
|
09-22-2014, 10:16 AM | #4 | |
Lieutenant
22
Rep 585
Posts |
Quote:
__________________
2013 535 X Drive, Alpine White/M Sport/Executive/Apps/Black Dakota/Fineline Anthracite
|
|
Appreciate
0
|
09-22-2014, 10:39 AM | #5 |
First Lieutenant
164
Rep 392
Posts |
Well…apparently resetting the average consumption doesn't change the reading. My guess is that the 700km to empty is based on a stored average mileage which is of a different value.
@Grover432:you can change it to show km/l through your idrive. |
Appreciate
0
|
09-22-2014, 11:01 AM | #6 | |
Major
731
Rep 1,472
Posts |
Quote:
As for your range, this is what manual states Range -> Displays the estimated cruising range available with the remaining fuel. It is calculated based on your driving style over the last 20 miles/30 km. That said, still don't get your 3.9 reading, something seems off there. |
|
Appreciate
0
|
09-22-2014, 05:56 PM | #7 |
Captain
285
Rep 634
Posts |
Never noticed km/L either, but I have L/100km, and I would expect that to read 10-12l/100km on a 550i, but since yours is saying 703km on 70 liters that is 10l/100km, which is not unreasonable based on BMW's latest engine technology.
City driving will give you higher consumption, I have driven in Singapore and I know what the traffic is like there so on a V8 I would expect a high consumption given your location. 3.9km/l is actually a consumption of 25,6l/100km, that is high for a modern V8, that is what I get on my 25 year old supercharged V12 auto in inner city driving My M550d usually averages just under 9l/100km, but with very eco oriented (boring) driving I have managed to get it as low as 7.4l/100km, still far from the factory promised 6.4l/100km though. The fuel warning light comes on when you reach a preset remaining range, 90km sounds reasonable, the manual say it will be sounding when reached, and continuously from 50km remaining range. |
Appreciate
0
|
09-24-2014, 12:06 AM | #9 |
Captain
285
Rep 634
Posts |
Wow, that high, I know the 540i from 15-20 years back used to get that kind of consumption, when my 850i was stock I got a typical mix consumption of 17-18l/100km, and as low as 11l/100km on the highway.
I would have thought these new V8's would have a much better fuel economy than the much older 4.4 V8 from the 90's. |
Appreciate
0
|
09-24-2014, 03:59 AM | #10 | |
General
1568
Rep 29,202
Posts |
Quote:
__________________
F10 520d M-Sport Alpine White | HRE P43SC 20x9+20x11 | Michelin PSS 255/35+295/30 | KW V3 Coilover | M5 Front Sway Bar + M550d Rear Sway Bar | 3DDesign Front Lip | BMW M Performance CF Spoiler | BMW M Performance Diffuser | BMW M Performance Black Grills | BMW M Performance Pedals | |
|
Appreciate
0
|
09-24-2014, 10:45 AM | #11 |
Lieutenant General
6659
Rep 15,858
Posts |
|
Appreciate
0
|
09-24-2014, 11:46 AM | #12 |
Lieutenant Colonel
268
Rep 1,597
Posts |
My 530d (US 535d ) is giving me 10.5/100km, however that is pure city commuting driving it pretty hard and spending time stuck in traffic. It will easily give 7/100km on the highway.
Not bad for the performance you get imho... |
Appreciate
0
|
09-24-2014, 03:32 PM | #13 |
Major General
2773
Rep 5,089
Posts |
my 530d average since owning the car is 6.6L/100Kms (42.6 mpg UK)
to be fair its rarely used in heavy traffic and that's weekend driving, mostly on motorways. so better than most I suspect given that. |
Appreciate
0
|
09-24-2014, 06:05 PM | #14 |
Lieutenant Colonel
268
Rep 1,597
Posts |
That's pretty good, but like I said I'm pretty much pedal to the metal in my driving style! Can get a lot better if I could be bothered to be more patient and more controlled in the the way I drive
|
Appreciate
0
|
09-24-2014, 09:16 PM | #15 |
Private
3
Rep 54
Posts |
Let me clarify. On the highway Driving at 120 km hr I can drive over 700kms on a tank. But currently I'm in sport+ all the time and 90% city driving so my fuel consumption has taken a nose dive.
|
Appreciate
0
|
09-25-2014, 12:46 AM | #16 |
Captain
285
Rep 634
Posts |
My M550D usually get around 8-9l/100km, depending on my driving style.
Spirited driving will put me close to 10l/100km, eco oriented driving will get me down to 7l/100km, BMW claim 6.3l/100km, but I doubt I will ever see that. Back to OP's issue. as we are comparing completely different things here, a 4 or 6 cylinder engine will not come close to a V8. The 700km is the range the car defaults to when the tank is full, my car default to 800km, but this number changes as the tank is drained and uses a calculation based on driving style on the remaining range. A V8 will have terrible fuel consumption in city driving. I myself have spent some time on the AYE and CTE from Keppel and PPL shipyard to Clarke quay and a V8 there from 5-8pm would get terrible consumption, above 20l/100km would not surprise me at all. |
Appreciate
0
|
09-25-2014, 06:58 AM | #17 | |
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
But some of us with idle moments while driving, may be watching how much it changes, say from a cold start, how many miles it takes to recover to the expected readings for miles covered. How it gains miles, often quite quickly, once we get into steady speed driving. An example is when I go into town, 12 miles dropping in altitude down the glen. I can gain a few extra miles on the range readout, even on the 12 mile trip. Coming back home typically gets back to where I'd expect it to be, a drop of ~24 miles. With long term mpg average staying the same. HighlandPete |
|
Appreciate
0
|
09-25-2014, 06:21 PM | #18 | |
Captain
285
Rep 634
Posts |
Quote:
I will admit there is a psychological effect when the consumption goes above 9l/100km making me drive more economical When I get my consumption down close to 7l/100km I get this satisfaction of driving very economical on one hand, but on the other I am very bored and not having that much fun driving. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|