Coolant Fluid Level - PREVOST X3-45 Commuter 2020 Operating Manual

8-8 Care and Maintenance

COOLANT FLUID LEVEL

The coolant system has two tanks; the surge tank
(A) and the recovery tank (B).
Check the coolant level into the recovery tank (B)
when the engine is cold (ambient temperature).
If the coolant level into the recovery tank is
l
lower than the MIN LINE, use the recovery
tank filler cap to add coolant until reaching
the FULL LINE.
Fill the recovery tank with the same 50/50 water-
antifreeze mixture already in the cooling system.
Do not mix two different types of coolant. Refer to
the Maintenance Manual for proper coolant type
specifications or see the label affixed near the
coolant surge tank on the vehicle.
DOB 1300-1556
Level Switches
Both tanks are equipped with a level switch. A
message will appear on the cluster according to
which switch is activated.
The table below shows the message and the
description.
MESSAGE
Check Engine
Coolant Level
at next stop
Engine
Coolant Level
critically Low
Level from the level switches does not match with
the level lines on the recovery tank.
Allow engine to cool down before adding
coolant. There is no pressure into the recovery
tank. If necessary, use the valve attached to the
surge tank to release the pressure into the
surge tank and the cooling system. Close the
valve after releasing the pressure.
PA-1639 Operator's Manual 2020 X3-45 Commuter
DESCRIPTION
Low engine coolant level
Warns the driver that the
engine coolant level
reached the recovery tank low
level switch. Add
whenever possible.
recovery tank filler cap.
Critically low coolant level
Warns the driver that the
engine coolant level
reached the surge tank low
level switch. Stop and add
coolant. Use recovery tank filler
cap.
WARNING
has
coolant
Use
has