Turning the key to MAR the warning light on the dial turns on, but it should go off as soon as the engine is started.
If the 
warning light turns on when
the car is travelling (on certain versions together with the message on the display),
stop the engine immediately and contact a Fiat Dealership.
See also:
The eco:Drive system
An innovative software program developed with Microsoft, called eco:Drive, is
available to new Fiat Doblò drivers. The system uses the USB port to analyse the
driving style helping the driv ...
TIREFIT Usage Precautions
• Replace the TIREFIT Sealant Bottle (1) and Sealant Hose (6) prior to the expiration
date (printed on the bottle label) to assure optimum operation of the system.
Refer to “Sealing a Tire with TIR ...
Refuelling
To guarantee full tank filling, carry out two refueling operations after the
first click of the fuel delivery gun.
Avoid further topping up operations that could cause damages to the fuel system.
...