Nav IV premature fuel warning

[papa_jop]

Hi again...
My new (to me) nav IV is playing tricks on me..
After refueling I reset the fuel meter. After about 66 km the "low fuel" warning pops up, and the pump icon shows on the screen.
When checking the fuel meter it shows more or less the correct level though...?
I have set the range to 330 km, and the warning to 280 km.
All SW up to date.

Any ideas?

/J

 

[DrFarkoff]

Yes and INFALLIBLE method.............

Fill up the fuel tank

Reset the Trip Meter on the vehicle to Zero and have a look occasionally when riding or driving to see how many km you have covered since you reset it

At 280km start looking for fuel

Reset the trip meter at each and every refuel and you are sorted

Just let the sat nav get you there and warn you of speed limits

Ride Safe

 

[papa_jop]

Sounds pretty much like the technique I have been using for the last 30 years (including the last 10 on a BMW with the sorry excuse for a fuel level meter).
The problem is more like "if it itches, I will scratch it"... If I see a bit of technology that isn't working as I expect, I can't keep my fingers away...

Does anybody have an idea, or seen the same issue?