If the Fiat CODE system fails to recognize that code transmitted by the ignition
key (instrument panel warning light 
on) the emergency startup can be performed by using the CODE card code.
See section “In an emergency”.
Catalyzed vehicles must not be bump started (pushed, towed or coasted downhill) as this could cause fuel to flow into the catalytic exhaust system and damage it beyond repair.
Remember that until the engine has started the brake booster and hydraulic
power steering systems will not work and a greater effort will therefore be required
to depress the brake pedal or turn the steering wheel.
See also:
Recommended Shift Speeds
To use your manual transmission for optimal fuel economy, it should be upshifted
as listed in the following table
...
Parking
Proceed as follows:
❒ Stop the engine and engage the handbrake;
❒ Engage a gear (first if the car is faced uphill or reverse if it is faced downhill)
and leave the wheels steered.
B ...
Environment and economy
The Fiat Doblò will be launched with four engines with 5 or 6 speed
gearboxes, all designed and made by FPT - Fiat Powertrain Technologies:
1.3 Multijet II 16v - 90 HP (Euro 4);
1.6 Multij ...