Trip computer (How does it estimate 'remaining kilometers before empty'?).

[skyhawk]

Anybody know how the trip computer calculates the 'remaining km' before empty?

Does it get reading from the fuel gauge?
How does it know if I put in full tank, or just few liters?

Is there a button that I need to press to tell it that I've filled in full
and that computer can now start 'calculating'?


Thanks.

 

[DrWebster]

Yes, it's tied to the fuel gauge. The trip computer will reset the "miles until empty" meter when you fill up the tank -- it simply checks to see if the fuel gauge is within a specified range at the "full" end. The owner's manual explains that if you fill the tank, only burn a small amount of gas (say, a gallon or so), then top the tank off, the "miles until empty" meter may not reset. There's no button you need to press to indicate that you've filled the tank; the computer figures it out on its own.

 

[XCLR8TN]

I'm convinced there isn't a fuel level gauge and it's trying to calculate based on how you are driving. Mine is always way off. I drove mine past the 0 miles to empty the other day (probably 15-20 miles past), then filled up and could only fit 9.7 gallons in............. we have an 11.3 gallon tank or so the manual says.... what gives!

 

[skyhawk]

Yes, it's tied to the fuel gauge. The trip computer will reset the "miles until empty" meter when you fill up the tank -- it simply checks to see if the fuel gauge is within a specified range at the "full" end. The owner's manual explains that if you fill the tank, only burn a small amount of gas (say, a gallon or so), then top the tank off, the "miles until empty" meter may not reset. There's no button you need to press to indicate that you've filled the tank; the computer figures it out on its own.

Thanks. Interesting. I've been filling up full tank. I'll try filling up halfway and check if it gives accurate distance before refuel.