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fuel consumption and runflats again!

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Old 12-26-2006, 04:15 PM
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Hi folks,
my first post.
I have two cars sitting outside, my old one which is about to go to car heaven is an e39 523 1996 model with 263,000 miles on the clock. I have had it about 5 years since it was 80,000. Its getting a little smokie now due to the valves. Best car i have ever had.
I now have an e60 530d, only got it last week. I have done nearly 1000 miles on it already and am getting a little worried about the fuel consumption on the computer. It is looking like 33mpg. When i bought my last one parkers guide said average 30 mpg and it was very close. For this one it said 42 mpg and i dont think its close. and i have not started to play with it yet!
So anybody out there got a 530d on an average what are you getting?

My second point which has already been covered in another post but i would like more feedback. I have driven 183,000 miles in my e39 and if i go out in it tommorow even with the lowered bilstiens and sports suspension with the 225 60 15 on it the ride quality is better than my 04 e60 with these crap runflats. I do 1000 miles every week and in the past 10 years have had 2 punctures. I would rather wait for 5 days for the rac to come get me than drive this car with the runflats its like riding on wheels made of stone.

I am running on 18 inch wheels so what are my options, i am sure the ones that are on are 35 profile. Do i need to change the wheels or can i get non runflats and if i do can i go slightly heavier than a 35 profile. Can someone give me some advice?

long enough for my first post dont you think.

thanks

fraseman999
Old 12-26-2006, 06:15 PM
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Originally Posted by fraseman999' post='371294' date='Dec 26 2006, 08:15 PM
Hi folks,
my first post.
I have two cars sitting outside, my old one which is about to go to car heaven is an e39 523 1996 model with 263,000 miles on the clock. I have had it about 5 years since it was 80,000. Its getting a little smokie now due to the valves. Best car i have ever had.
I now have an e60 530d, only got it last week. I have done nearly 1000 miles on it already and am getting a little worried about the fuel consumption on the computer. It is looking like 33mpg. When i bought my last one parkers guide said average 30 mpg and it was very close. For this one it said 42 mpg and i dont think its close. and i have not started to play with it yet!
So anybody out there got a 530d on an average what are you getting?

My second point which has already been covered in another post but i would like more feedback. I have driven 183,000 miles in my e39 and if i go out in it tommorow even with the lowered bilstiens and sports suspension with the 225 60 15 on it the ride quality is better than my 04 e60 with these crap runflats. I do 1000 miles every week and in the past 10 years have had 2 punctures. I would rather wait for 5 days for the rac to come get me than drive this car with the runflats its like riding on wheels made of stone.

I am running on 18 inch wheels so what are my options, i am sure the ones that are on are 35 profile. Do i need to change the wheels or can i get non runflats and if i do can i go slightly heavier than a 35 profile. Can someone give me some advice?

long enough for my first post dont you think.

thanks

fraseman999
Many have installed non-runflats on the rims that came with runflats, go to tirerack.com to see your tire/size options. Welcome aboard.
Old 12-27-2006, 03:32 AM
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Welcome.

It may help if you put UK in your location as this is an international board and you will start getting replies which are territory specific and not applicable.

AFAIK wheels are NOT RFT specific.

Combos for e60 can be derived here: http://www.e60.net/information/options/wheels/

ABC
Old 12-27-2006, 05:10 AM
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When I got my E60, I was disappointed with the displayed MPG but then I discovered that the computer was displaying US Gallon units (about 3.5 litres IIRC) instead of imperial gallon units which are about 4.5. It was configurable and I was able to change it.

Can't remember where exactly but if you go to the vehicle settings in the i-drive (press "i") you should be able to discover if that's the case
Old 12-27-2006, 06:45 AM
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Originally Posted by Amauvis' post='371417' date='Dec 27 2006, 02:10 PM
US Gallon units (about 3.5 litres IIRC) instead of imperial gallon units which are about 4.5.
The US gallon is exactly 80% [16/20ths] of the Imperial gallon .

[it's to do with fluid ounces being constant across the two measurement systems and the US sensibly having 16 fluid ounces to the pint (like 16 ounces to the pound weight) but bizarrely in the Imperial system though we have 16 ounces to the pound weight, we have 20 fluid ounces to our pint. Then in both systems it's 2 pints one quart, 4 quarts one gallon.]

So if you find that you need to convert from US to imperial gallons for fuel consumption calculations, your mpg will immediately increase by 25% [20/16ths].

ABC
Old 12-27-2006, 07:07 AM
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Your MPG is normal for a 530D, I average 31 mpg UK.

This is accurate
Old 12-28-2006, 04:00 AM
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Hi

I got my UK E60 530d manual recently. I have done around 2000 miles in total and the computer is giving me an average of 39.7mpg - thats with 60 miles travelling per day. 46 miles are 70 mph motorway and 14 miles are crawling traffic. Haven't done a proper manual calculation yet.


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Old 12-28-2006, 06:18 AM
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Is your 530d a manual or an automatic? Either way, the big diesel engines take some time to warm up, so the mpg is not so good on short trips around town, but improves dramatically on longer journeys. In my March 2004 E60 530d auto, I used to get 40mpg on a run, driving fairly carefully. Around town, especially on short journeys, it dropped down to 31/32mpg. So I averaged about 35mpg overall, and I'm seeing similar figures from my E92 335d Coupe.

Regarding the runflats, I was in the same position as you last year and I bought a space saver spare wheel (the one from BMW comes with the jack and wheelbrace and foam insert and fits in the space in your boot/trunk), then I bought some decent non-runflat tyres. I had Conti SportContact 2's on mine, and they were smooth, quiet and had good grip - a huge difference to the original 2004 runflats. I have read that runflats have improved, so it's possible that you might get a better ride just by putting on some new runflats, however if you're used to normal tyres (and the quiet smooth ride of your E39) then non-runflats are probably the answer.
Old 12-28-2006, 07:10 AM
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Originally Posted by red-max' post='371775' date='Dec 28 2006, 03:18 PM
Regarding the runflats, I was in the same position as you last year and I bought a space saver spare wheel (the one from BMW comes with the jack and wheelbrace and foam insert and fits in the space in your boot/trunk), then I bought some decent non-runflat tyres. I had Conti SportContact 2's on mine, and they were smooth, quiet and had good grip - a huge difference to the original 2004 runflats. I have read that runflats have improved, so it's possible that you might get a better ride just by putting on some new runflats, however if you're used to normal tyres (and the quiet smooth ride of your E39) then non-runflats are probably the answer.
I still don't know the answer to this.

If you have a full car with full boot/trunk, where do you put a damaged non-runflat in the event of a puncture?

What's the largest wheel/rim width (inches or J) it fit in the spacesaver/donut recess?

ABC
Old 12-28-2006, 10:27 AM
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Originally Posted by aybeesea' post='371789
What's the largest wheel/rim width (inches or J) it fit in the spacesaver/donut recess?
Not sure, but I'm pretty sure none of the standard wheels fit due to the width!


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