OPM 250 en-GB 47
© Scania CV AB 2022, Sweden
Cooling system
Checking the coolant level
Do not open the coolant filler cap in the expan-
sion tank if the engine is hot. Hot coolant and
steam may spray out and cause burns. If the cap
has to be opened do it slowly to release the pres-
sure before removing the cap.
Use protective gloves as coolant can cause irrita-
tion if it comes in contact with the skin.
It is not permissible to top up large amounts of
coolant via the expansion tank. Filling via the ex-
pansion tank leads to air locks in the cooling sys-
tem which can lead to e.g. cavitation damage to
the coolant pump shaft seal. If a large amount of
coolant needs to be added, follow the instruc-
tions in the section Filling coolant
.
Only pour pre-mixed coolant into the cooling
system.
The following instructions apply to Scania ex-
pansion tanks. For other types of expansion
tanks, follow the manufacturer’s instructions.
1. Check the coolant level through the sight
glass on the expansion tank.
2. Top up with coolant as necessary.
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