Ford Focus 2004 Owner's Manual page 155

Cooling system reservoir
To avoid scalding, never
remove the cap from the
coolant reservoir when the engine
is hot. Do not restart the engine
until the problem has been
eliminated.
The coolant level is visible through
the translucent reservoir. The
coolant level should be between the
MIN and the MAX mark when the
engine is cold. Hot coolant expands
and may, therefore, extend beyond
the MAX mark.
Maintenance and care
The coolant should be added when
the engine is cold. If coolant has to
be added when the engine is hot,
first wait 10 minutes for the engine
to cool. Initially, unscrew the cap
only one quarter turn to allow the
pressure to escape. Wait a moment
then open it fully.
Take great care when
adding coolant. Avoid
spillage on any part of the engine.
Add only coolant that meets the
Ford Specification. For further
details, refer to the chapter
Capacities and specifications.
Engine coolant
Do not allow this fluid to
make contact with the skin
or eyes. If this should happen
rinse the affected areas
immediately with plenty of water
and contact your doctor.
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