2nd Time Check Fuel Light Has Gone On, Then Off

[H8R Proof]

Why would this happen?

[mrsel3]

check the gas cap, make sure it is on right. had that problem on an ml430 once

[SKperformance]

I am not sure what you mean?

Does the CEL go on?,if so what code?

Or the low gas light?

[Toysrme]

You're low on gas. It'll go on and off a bunch of times before you run out. It's an 18.5 gallon tank. To fill from empty is about 15-16 gallons for most people. - and the light is comming on at 2.5-3-3.5 gallons left, something like that.

It's not tied to anything to give an error code. If it's really messing up I don't know where to start troubleshooting. I guess check the fuel sender in the tank, the wiring, and stuff.