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E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 04-05-2005, 12:15 PM
abqhudson abqhudson is offline
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Calibrate computer MPG???

I have a 2004 530i. The computer mpg is way off. Is there a way to recalibrate this? Local dealer says no. Need to confirm whether or not I am just stuck. Thanks for any information.

Jim
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  #2  
Old 04-05-2005, 01:40 PM
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Ågent99 Ågent99 is offline
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Out of curiosity, how do you know it is way off? I assume you've reset it several times but to no avail?
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  #3  
Old 04-05-2005, 03:16 PM
abqhudson abqhudson is offline
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Computer mpg way off.

I bought the car in Louisville, KY and drove it back to Albuquerque, NM. I checked the mileage and reset the computer at every fill-up on the way home. The computer was consistently about 22% optimistic. Do you have an answer to my question?

Jim
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  #4  
Old 04-06-2005, 06:06 AM
Speedfreak Speedfreak is offline
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I can't answer your question, but. I checked mine. It was always optimistic. After I had my dash pixals repaired my indicated MPG went way down. I'm not sure what that may have had to do with it, I haven't checked it since. I should get a chance in a couple of weeks.
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  #5  
Old 04-07-2005, 06:04 PM
philippek philippek is offline
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Your car is calculating mpg using imperial gallons, which are about 22% larger than U.S. gallons. The E60 can be reprogrammed to calculate mpg by U.S. gallons.

And I hope the deal was really good to justify all that driving...

Last edited by philippek; 04-07-2005 at 06:17 PM.
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  #6  
Old 04-07-2005, 08:01 PM
BlackMagic BlackMagic is offline
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Yes, the system can be recalibrated. I have done it as mine was about 1-2 mpg high. It is now dead accurate to the tenth of a mpg, consistently tank to tank and I check every tank. Just do a search and find the write up on how to get into the system. It is a bit tricky.
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  #7  
Old 04-08-2005, 08:11 AM
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Ågent99 Ågent99 is offline
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Interesting. According to my trusty HP48SX:

1 galUK = 1.201 galUS

Great work from the fellow 'festers...gotta love this board sometimes.

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  #8  
Old 04-08-2005, 10:48 AM
CheapCheap1 CheapCheap1 is offline
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Quote:
Originally Posted by philippek
Your car is calculating mpg using imperial gallons, which are about 22% larger than U.S. gallons. The E60 can be reprogrammed to calculate mpg by U.S. gallons.

And I hope the deal was really good to justify all that driving...
Is it too difficult to reprogram it to US-Gal?
And, how to do it?
Would you pls share w/ us...
Many thanks,
CC1
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  #9  
Old 04-08-2005, 10:56 AM
philippek philippek is offline
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Quote:
Originally Posted by CheapCheap1
Is it too difficult to reprogram it to US-Gal?
And, how to do it?
Would you pls share w/ us...
Many thanks,
CC1
If you have an earlier build (pre Feb 05), the dealership has to do it. If you have software 16.0 or greater, I believe it's under the "units" menu under "vehicle settings." I can't vouch for the later, as I don't have 16.0 yet.
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  #10  
Old 04-08-2005, 11:24 AM
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iateyourcheese iateyourcheese is offline
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Quote:
Originally Posted by philippek
Your car is calculating mpg using imperial gallons, which are about 22% larger than U.S. gallons. The E60 can be reprogrammed to calculate mpg by U.S. gallons.

And I hope the deal was really good to justify all that driving...
Wow. At first I thought you were being sarcastic. Nice catch.
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  #11  
Old 04-09-2005, 03:39 PM
abqhudson abqhudson is offline
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Fantastic!

Fantastic. You were exactly right and I was able to reset the units to US gal.

Thanks again for your help. I'm not sure why the "Master Certified Techs" do not know this.

Jim
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  #12  
Old 04-23-2005, 07:56 PM
cprgolds cprgolds is offline
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Quote:
Originally Posted by CheapCheap1
Is it too difficult to reprogram it to US-Gal?
And, how to do it?
Would you pls share w/ us...
Many thanks,
CC1
It's in the I-Drive Display Settings.....
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  #13  
Old 04-25-2005, 12:53 PM
netdoc netdoc is offline
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What mpg are you all getting on E60 530i??

I just bought a 05 530i. I know it will get better but I am only getting 16mpg on average city and hwy driving... I think it is way low. I have reset it when I refill to measure. The car now has 900 miles on it. I think I am way off....
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  #14  
Old 04-25-2005, 01:12 PM
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Ågent99 Ågent99 is offline
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I was getting just under 20 mpg on my 545i during my wild 5 days/1250 miles in Europe.

Try using good old pencil and paper and see how it compares to the BMW computer.
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