Freshwater system, Flushing
The cooling system should be flushed when the cool-
ant is changed, to avoid loss of cooling performance
due to deposits in the cooling system.
1 Drain the coolant, please refer to section Coolant,
Draining page 73.
2 Put a hose into the filling hole in the heat exchanger
and flush with fresh water.
3 Flush until the water which runs out of the drain
points is clean.
4 Close all drain points when all coolant has run out.
5 Fill up with coolant, please refer to section Coolant
Level, Checking and Topping Up page 71.
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