Nanni Diesel T4.165 Manuel D'instructions page 7

Inspection and adjustment of the levels
Coolant level
Warning !: When fi lling the cooling system, the
I
coolant level must be checked after 10 minutes of
use since the system purges itself automatically. Top
A
up if necessary.
A. Coolant plug
Turn the fi ller plug up to its fi rst stop to allow the pressure
in the system to escape before removing the plug. Inspect
the fl uid level.
The level should be between the lower edge of the
fi ller neck and the level pin (if equipped), respectively
representing the minimum and maximum level.
Top up if necessary using a fl uid comprising 50% water
and 50% antifreeze.