Maintenance
26
Coolant. Checking and filling
WARNING!
Do not open the filler cap when the
engine is warm, except in emergencies. Steam
or hot fluid could spray out.
Check the coolant level daily before starting. Top the
coolant up as necessary. The level should be about
50 mm (2”) below the sealing plane of the filler cap,
or between the MIN and MAX markings, if a separate
expansion tank is installed.
IMPORTANT!
Topping up should be done with
the same type of mixture as is already in the
cooling system.
Filling a completely empty system
Check that all drain points are closed.
The location of drain and vent taps is shown
overleaf.
Filling should be done with the engine stationary. Fill
up slowly, to allow the air to flow out.
If a heating unit is connected to the engine cooling
system, the heat control valve should be opened and
the installation vented during filling.
Fill up with coolant to the correct level.
Do not start
the engine until the system is vented and com-
pletely filled.
Start the engine and warm it up until the thermostats
are fully open (about 20 minutes). Open any venting
taps some while after starting, to allow shut-in air to
escape. Check the coolant level and top up as neces-
sary.
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