The needle shows the fuel present in the tank. When the fuel reserve warning light A-fig. 35 - 36 comes on (on certain versions with the dedicated message on the reconfigurable multifunction display) it means that there are approximately 5-7 liters of fuel left in the tank.
E - tank empty.
F - tank full.
Never travel with the tank almost empty: lack of fuel could damage the catalyser.

IMPORTANT
The needle will point to E and the reserve warning light A will flash to indicate a fault in the system. Contact a Fiat Dealership to have the system checked.
See also:
If an interior light burns out
Modifications or repairs to the electrical system carried out incorrectly
and without bearing the features of the system in mind can cause malfunctions with
the risk of fire.
See “If a bulb burn ...
Accessories purchased by the owner
If after buying the car, you decide to install electrical accessories that require
a permanent electric supply (alarm, satellite antitheft system, etc.) or accessories
that in any case burden the ...
Conditions of use
Cold starting
Short journeys and frequent cold starts do not allow the engine to reach optimum
operating temperature. This results in a significant increase in consumption levels
(from +15 to +30 ...


