Service and maintenance
Cooling system 117
Cooling system
The radiator is a side-mounted, cross-flow radiator with a
hydraulically driven cooling fan. A hydraulic pump installed on the
engine drives the hydraulic motor of the fan.
The fan speed is automatically adapted to the engine speed and
its need of cooling.
If the engine temperature becomes too high even though the
coolant level is correct, the radiator should be cleaned.
If the engine temperature still is too high, contact a workshop
authorised by Volvo CE for action to be taken.
Coolant
The cooling system is filled with Volvo Coolant VCS To avoid
damage to the engine, it is very important to continue using the
same coolant, when topping up or changing, as the system was
filled with previously.
IMPORTANT! To avoid damage to the engine, different kinds
of coolant must not be mixed with each other.
Cooling system capacity when changing: approx. 90 litres
(23.8 US gal)
Total capacity: approx. 100 litres (26.4 US gal)
If concentrated coolant and clean water (see page 169) are used,
the table below shows the approximate amount of concentrated
coolant that is required to achieve freeze protection. The amount
of concentrated coolant must never be less than 40% of the total
mixture.
If there is doubt as to the quality of the water, use ready-mixed
coolant.
IMPORTANT! If ready-mixed coolant is used, it is very
important that the correct kind is used. The engine may be
damaged if different coolants are mixed.
Freeze protection down to Content of concentrated coolant
–25 °C (–13 °F) 40 %
–35 °C (–31 °F) 50 %
–46 °C (–51 °F) 60 %
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