The warning light on the dial turns on (on certain versions a message is displayed on the reconfigurable multifunction display) when there is water in the diesel fuel filter.

Turning the ignition key to MAR, the warning light (if present) on the instrument panel shall turn on but it should go off after a few seconds.

The presence of water in the fuel circuit may cause serious damage to the entire injection system and cause irregular engine operation. If warning light c or ècomes on the dial (on certain versions a message is displayed on the reconfigurable multifunction display), contact Fiat Dealership as soon as possible to have the system relieved. Should the above warning indication come one immediately after topping up, water has probably been poured into the tank: turn the engine off immediately and contact Fiat Dealership.