Maintenance and Service
Diesel engine
383 / 564
7.1.4.2 Checking coolant
If the liquid level in the cooling-water expansion tank seems too low, then the warning
icon is displayed on R-Touch . The coolant expansion tank is located under the radi-
ator cover in the driving direction left beside the charge air cooler.
(1) Filler cap
(2) Pressure cap (do not open)
WARNING
Burning hazard!
As long as the engine is warm, the cooling system is under pressure. There is a burn-
ing (scalding) hazard from emitting steam or spraying hot coolant!
– Wear protective gloves and protective goggles.
– Open the filler cap (1) of the expansion tank only when the engine has cooled off.
Open the filler cap always very carefully.
Open the intake grid (See Page 382).
Only check the coolant level at a coolant temperature of below 50°C.
Before correcting the coolant level, check corrosion protection/antifreeze.
To check the coolant level, slowly and carefully open the filler cap (1) of the expansion
tank. Slowly relieve possible excess pressure.
Check corrosion protection/antifreeze using a testing device.
The correct component of 50 vol.-% corrosion protection/antifreeze agents in the
coolant is warranted if it is frost-proof up to -37°C. If less antifreeze is indicated, then
correct the mixture ratio.
If the concentration is too low, there is the hazard of damage to the engine due to cor-
rosion/cavitation in the cooling system!
Avoid concentrations of more than 55 vol.-% corrosion protection/antifreeze agents,
because otherwise the maximum frost protection of up to -45°C is not achieved. The
cooling system is correctly filled if the coolant is up to the bottom edge of the filler
opening.
Always make sure of sufficient antifreeze and only use corrosion protection/antifreeze
agents expressly approved according to the Volvo standard: Volvo Penta Coolant
VCS (yellow).
To Next Page
Loading...