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Service
and maintenance
174
Cooling system
Coolant
Check the coolant properties every 500 hours.
The cooling system is either filled with Volvo Coolant
LQ
or Volvo
Coolant. To avoid damage to the engine, it is very important to con-
tinue to use the same coolant, when filling or changing, as the sys-
tem is filled with.
IMPORTANT! Do not mix different coolants or corrosion pro-
tection as this may result in engine damages.
To distinguish the coolant from each other
The cooling system is filled with Volvo Coolant VCS if
— it is yellow
— if a decal with the text "Volvo Coolant VCS" is put by the filling
point (see picture).
The cooling system is filled with Volvo Coolant if
— itisgreeri
— if the decal mentioned above, is not by the filling point.
If concentrated coolant and clean water (see page 212) is used,
the table below shows the approximate amount of concentrated
coolant needed for freezing protection. The content of coolant
must never be less than 40% of the total mixture.
If in doubt of the water's quality, a ready-mixed coolant should be
used.
IMPORTANT! If a ready-mixed coolant is used, do not mix
with other ready-mixed coolants as this may damage the
engine.
Freeze protection down to
Content of concentrated coolant
-25 °C (-13 °F)
40%
-35 °C (-31 °F)
50%
—46 °C (-51 °F)
60%
Checking coolant level
Check the coolant level daily.
WARNING!
Immediately after operating the engine, the coolant is very
hot. Do not open the radiator cap until it has cooled down,
then open the cap slowly to release the internal pressure.
1 Open the engine hood.
2 Check the coolant level.
If the level is in the center of gauge (B), the level is normal.
3 If the coolant is not invisible in the sight gauge, top up through
(A) up to" B "lower.
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