fuel consumption
#31
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My Ride: 2006 530 XD TOURING Luxe, 231HP
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530 Xd touring:
Driving town area (Cardiff) all week long and quite often one round trip on M4 to Heathrow. Average mileage is 7.6l/100km. I drive most of time in DS or manual mode as i find the engine too lazy below 1800rpm...On M4 I am more like 6.9 to 7.1 l/100km driving 140km/hr to 160km/hr when traffics allows. In town car does more like 8.1 to 8.4l/100km. At full speed (tachometer at dead end) on german autobahn while driving to Frankfurt, I was around 13.5 to 15l/100km. As I have now made 40k with the car in 1 year, and tires are good for change, I cannot say tire wearing up as help or handicap in anyway.
I do not try to be fuel savvy at all, nor do I drive aggressively as I try to respect engine temperature ramp and idling...
Yet I have seen improvement of figures after BMW updated the whole soft in the car after a persistent 'oil low' level alarm that was not real (see my post on this). Upgrade was to CIP29.
I am planning to remap car in January with 'evolve' in Luton and from what I heard mileage expected to improve slightly.
So i would go for soft upgrade and remap, (after having all other potential items checked like air filter, and do a re-calibration of fuel consumption, and maybe few other things check by BMW). Oh yeah, forgot: reset the trany too. Many post on how to do this. it makes driving better and prevent some spike of consumption when car gears down. Not sure why but I noticed that. So now every month I do a reset. Became an habit.
Driving town area (Cardiff) all week long and quite often one round trip on M4 to Heathrow. Average mileage is 7.6l/100km. I drive most of time in DS or manual mode as i find the engine too lazy below 1800rpm...On M4 I am more like 6.9 to 7.1 l/100km driving 140km/hr to 160km/hr when traffics allows. In town car does more like 8.1 to 8.4l/100km. At full speed (tachometer at dead end) on german autobahn while driving to Frankfurt, I was around 13.5 to 15l/100km. As I have now made 40k with the car in 1 year, and tires are good for change, I cannot say tire wearing up as help or handicap in anyway.
I do not try to be fuel savvy at all, nor do I drive aggressively as I try to respect engine temperature ramp and idling...
Yet I have seen improvement of figures after BMW updated the whole soft in the car after a persistent 'oil low' level alarm that was not real (see my post on this). Upgrade was to CIP29.
I am planning to remap car in January with 'evolve' in Luton and from what I heard mileage expected to improve slightly.
So i would go for soft upgrade and remap, (after having all other potential items checked like air filter, and do a re-calibration of fuel consumption, and maybe few other things check by BMW). Oh yeah, forgot: reset the trany too. Many post on how to do this. it makes driving better and prevent some spike of consumption when car gears down. Not sure why but I noticed that. So now every month I do a reset. Became an habit.
#32
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Originally Posted by KAF' post='733010' date='Nov 27 2008, 10:11 PM
If you are driving in London traffic, the figures do not surprise me, take no notice of the quoted urban figures, you cannot compare the real world figures with them.
#33
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My Ride: 530d Touring
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Originally Posted by plamen_koychev' post='736828' date='Dec 3 2008, 03:37 PM
Yes driving in London traffic- morning and evening peak. Consumption is back to 18 mpg (imperial), so looks like software update didn't improve consumption that much.. :-(.
My 535d would do 16mpg in London traffic from cold during the winter.
Combine this with an early morning start in Norfolk during the summer where it used to get 27mpg, big difference!!
Same car, just different location and temperatures.
#34
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I'm another 04 E61 530d Auto seems pefect but staggered by 23 imperial around town (not London) I uses to get 28+ from my 330i. Will be looking at all the options listed and will report back.
#35
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Im a tit
I was on US MPG<
I thought I would not fall foul to that one as I was sure I had setup the menu properly already, clearly not.
That means I seem to be getting anywhere between 30 and 40 european MPG, worst and best.
Sorry![Smile](https://5series.net/forums/images/smilies/imported/smile.gif)
( Thank god for that - was starting to think I had made a mistake with the 530d engine - ie "shoulda bought the petrol maybe ? " syndrome )
I was on US MPG<
I thought I would not fall foul to that one as I was sure I had setup the menu properly already, clearly not.
That means I seem to be getting anywhere between 30 and 40 european MPG, worst and best.
Sorry
![Smile](https://5series.net/forums/images/smilies/imported/smile.gif)
( Thank god for that - was starting to think I had made a mistake with the 530d engine - ie "shoulda bought the petrol maybe ? " syndrome )
#36
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As has been pointed out elsewhere on the forum, the big turbodiesels are also most economical when run hard / on boost to get to your target speed as quick as possible and then settle into cruise mode. One just can't do that in city start-stop driving and this is reflected in the mpg numbers. Basically, when in town, our 530d's and 535d's ar no different from any other large-capacity 6-pot engine slurping away ...
#37
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My -04 E61 530d has ~ 11.5L in average of 37km/h and at highway speeds around 6,7- 7 liters. Those numbers are in connection in figures which BMW presents in manual.
I really don't believe those 4L figures which are over 2L under BMW's own consuption figures. If it is true the is a problem with the car, propably faulty MAF
I really don't believe those 4L figures which are over 2L under BMW's own consuption figures. If it is true the is a problem with the car, propably faulty MAF
#38
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My Ride: BMW E61 525DSE Auto Touring.
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Originally Posted by plamen_koychev' post='695471' date='Oct 17 2008, 12:55 PM
Hello Everyone,
I was wandering if anyone has experienced similar problems or have any ideas on what is going wrong.
Few days ago I bought used bmw 525d se, auto, registered on July 2005, on 87K miles. I have reset the fuel consumption gauge and I get 17-18 mpg urban drive. According to the spec urban fuel consumption should be around 30-31 mpg. Since then I have reset the fuel consumption several times, but I get similar figures - almost half of what the official figures are. I have reset the auto gearbox, checked the tyre pressure is correct, but the results were the same. There are no any signs of malfunction, no check errors etc.. All services were done by bmw and the last service was done just 6 months ago, so air filter should have been changed etc.
Has anyone experienced similar problems?
Cheers for your time in reading.
Plamen
I was wandering if anyone has experienced similar problems or have any ideas on what is going wrong.
Few days ago I bought used bmw 525d se, auto, registered on July 2005, on 87K miles. I have reset the fuel consumption gauge and I get 17-18 mpg urban drive. According to the spec urban fuel consumption should be around 30-31 mpg. Since then I have reset the fuel consumption several times, but I get similar figures - almost half of what the official figures are. I have reset the auto gearbox, checked the tyre pressure is correct, but the results were the same. There are no any signs of malfunction, no check errors etc.. All services were done by bmw and the last service was done just 6 months ago, so air filter should have been changed etc.
Has anyone experienced similar problems?
Cheers for your time in reading.
Plamen
#39
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My Ride: E61 CarbonBlack 535d, Ventilated and Heated Comfort Seats with Massage in Black Nasca Leather, Dark Poplar Wood, Professional Navi, Folding Rear Seats, Load Through, Advanced Remote, PDC, Bluetooth, Dimming and folding Mirrors, Bi-Xenons, Hi-Fi, Tinted
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Originally Posted by MacSid' post='738476' date='Dec 5 2008, 12:33 PM
As has been pointed out elsewhere on the forum, the big turbodiesels are also most economical when run hard / on boost to get to your target speed as quick as possible and then settle into cruise mode. One just can't do that in city start-stop driving and this is reflected in the mpg numbers. Basically, when in town, our 530d's and 535d's ar no different from any other large-capacity 6-pot engine slurping away ...
#40
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Since my original reply here in this thread my average increased to 40mpg and long runs on motorways etc anything up to 45.7mpg which I think is astounding for such a big luxurious powerfull car, I also have a tuning box fitted atm and have changed my driving style to suit, ie the quick squirt technique to cruise speed.
Very very impressed, and very happy with my change from the old pre common rail E46 320d I used to have, ever cheaper to run on fuel than that was...........unbelievable.
Very very impressed, and very happy with my change from the old pre common rail E46 320d I used to have, ever cheaper to run on fuel than that was...........unbelievable.
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