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:
Vehicle protection system failure -Fiat code
(amber)
Turning the key to MAR the warning light shall flash only once and then go off.
If with the ignition key at MAR, the warning light stays on, this indicates a
possible failure (see “Fiat ...
Provisions for the processing of a vehicle at the end of its life-cycle
For years now Fiat has been developing its global commitment towards the safeguarding
and protection of the Environment through the continuous improvement of its production
processes and the makin ...
Cylinder replacement procedure
To replace the cylinder proceed as follows fig. 16h:
– disconnect connection A; turn counter-clockwise the cylinder to replace and
raise it; fit the new cylinder and turn it clockwise; connect conn ...