Draining and filling coolant
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Draining coolant
Danger:
When draining hot coolant, there is a
danger of scalding!
Drain coolant as follows when cooling system has
cooled down
Note:
Collect the drained coolant and dispose
of it in accordance with regulations!
Remove drain plugs from oil cooler housing and
central coolant pipe.
Catch emerging coolant in a suitable container.
Fill / bleed the cooling system (only when engine has cooled down)
The cooling system of the engine is to be filled with a mixture of drinking water from the mains and anti-
freeze based on ethylene glycol and/or anticorrosion additive.
See Publication “Fuels, Lubricants and Coolants for MAN Diesel Engines”.
Coolant must be poured in according to the vehicle manufacturer’s filling specifications.
Do not pour any cold coolant into an engine which is still warm.
Ensure that the ratio of water to anti-freeze is correct.
D Pour in coolant slowly until the correct coolant level is reached (max. 10 ltr./min.)
D Run the engine briefly and then check coolant level once more
Danger:
If, in exceptional cases, the coolant level on warm engines has to be checked or the cooling circuit
opened, observe the vehicle manufacturer’s safety regulations.
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