Cooling system Refilling coolant with pump This procedure applies when the cooling system has been drained and needs to be filled with a large amount of coolant. Special tools Number, designation Illustration 2 443 679, coolant pump 360 625 WARNING! Use protective gloves as coolant can cause irrita- tion if it comes in contact with the skin. Hot cool- ant can also cause scalding. IMPORTANT! It is not permissible to fill large amounts of cool- ant via the expansion tank. Filling via the expan- sion tank leads to air pockets in the cooling system which can lead to damage to the coolant pump shaft seal for example. Never fill a large amount of cold coolant in a hot engine.
There is great risk of cracks forming in the cylinder block and cylinder heads. Fill the cooling system only with ready-mixed coolant. Mix the coolant as specified in the sec- tion headed Coolant. Do not start the engine until the correct coolant level has been obtained. If the engine is started with a coolant level that is too low, the coolant pump shaft seal may be damaged, which can re- sult in leaks. 00:23-02 en-GB 29 © Scania CV AB 2016, Sweden