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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 03-07-2011, 04:54 PM
milesdf milesdf is online now
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Mein Auto: 98 BMW Z3 2.8 liter
Z3- Fuel "idiot light" after parking on incline?

I parked on an incline with 1/2 tank of fuel. Came out two hours later and the low fuel red warning light was on.
I thought, WT heck, someone had syphoned my fuel!
I limped to a gas station with white knuckles, but the tank only tood 7 gallons.
Anyone else had an issue with the low fuel warning light after parking on an incline?
Dave
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  #2  
Old 03-07-2011, 07:44 PM
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bmw_n00b13 bmw_n00b13 is offline
Freude am Fahren
Location: Cambridge, ON
 
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You've got a good 40miles on the red light.

It can take a while to get the car to register a higher fuel level.
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  #3  
Old 03-08-2011, 04:20 PM
Incompatible Incompatible is offline
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I think it may be the location and orientation of the fuel float in the tank and/or it may be sticking. I have the identical problem with my Ford Expedition. If I park on a steep incline, nose down, with anything less then 3/4 of a tank of gas, my gauge shows empty and the idiot light is on. I can start the car and drive to a level surface and it still registers as empty. As soon as I turn the engine off and restart, the gauge will read accurately. Been that way now for 75,000 or so miles.
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Old 03-08-2011, 11:27 PM
milesdf milesdf is online now
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thanks. I'll try turning it off then on again.
cheers
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  #5  
Old 03-09-2011, 03:33 AM
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bob lindquist bob lindquist is offline
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The sender in the tank has a history of failure in this fashion. Many cars have an oval cut in the carpet behind the passemger seat to access the sender and replace it. (with a near empty tank). There are posts on this subject.
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Old 03-09-2011, 02:04 PM
DashingDaryl DashingDaryl is offline
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I had a similar problem in another car I owned. Turns out I used too much Costco gasoline and it made the gas tank float misread how much gas I had. After a couple of bottles of Injector cleaner, the problem went away.
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