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  #1  
Old 08-13-2011, 08:54 AM
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fuel gauge not resetting to full

indicator said I only had 27mi to go, needle shows maybe 1/8 of the tank left. Put in 15.5gal of 93 octane and I start the car... neither changes. It actually even dropped to 26mi as I drove another half mile. I shut off and restarted the car. Same thing, neither the readout or the needle have "reset".
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Old 08-13-2011, 12:11 PM
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Check out this thread:
http://www.xoutpost.com/bmw-sav-foru...full-tank.html

There are many other similar threads, it seems to be a common problem.
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Old 08-13-2011, 12:38 PM
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My dealership reset the fuel sensor and it seems to work fine for the past 4 months.
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Old 08-14-2011, 03:45 AM
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well I've been using Hess and Sunoco gas exclusively and this happened... don't think they sell bad gas.

It finally corrected itself in the afternoon, after driving 20 minutes and having it parked for 5 hours. It was fixed upon that next startup.

Reading that Techron (aka BMW branded) fuel system cleaners fixes potential problems with fuel gauge sensors as well.
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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr
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Old 04-01-2012, 09:28 PM
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I just bought an 09 CPO and noticed that the tank never went all the way up, but didn't really put much more thought into it. Last week I filled up with 15 gallons (had a quarter tank) so it should have been full but it only went to 3/4. I took it in and they said they fixed it. Filled up again tonight and it still won't go all the way to the 1. Sounds like that's common, but is that normal?

Here's where it went tonight...

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Old 04-02-2012, 09:44 AM
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I have the same problem but dealer said they could not find a problem.
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Old 04-02-2012, 12:00 PM
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Same problem with 09 3.0, had the dealer look at a few times when in for service and they could not find a problem.
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Old 04-02-2012, 02:30 PM
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Bad fuel sensor. Had mine replaced under warranty last week !
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Old 04-02-2012, 02:46 PM
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The issue with the needle never reaching the 1 is a different issue than what I posted here originally. The cause for my issue was the "fuel level sensor wire burnt". They patched it up and it was fine again.

I've seen what you guys are talking about though in other threads, but this is not it. Just wanted to clarify.
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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr
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Old 04-02-2012, 09:48 PM
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It just happened to me two weeks ago. It showed I had 3/4 fuel when it had a full tank. After a day or so, it seemed to have corrected itself. But ill be mentioning this the dealer when I get it service next. Might as well while its still under warranty.
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