Vauxhall 2009 Tigra Owner's Manual page 167

Coolant level
In a closed cooling system, there is hardly
any loss.
If the cooling system is cold, the
coolant level should be above the
KALT/COLD mark. Top up if the level is low.
9 Warning
Allow the engine to cool before opening
the cap. Carefully open the cap,
relieving the pressure slowly.
Top up with anti-freeze. If no anti-freeze is
available, fill with clean tap water or
distilled water. Have the anti-freeze
concentration checked.
Have the cause of coolant loss rectified by
a workshop.
Caution
Too low a coolant level can cause
engine damage.
Fit the cap on straight and tighten it.
Service and Maintenance
Brakes
A screeching noise indicates that the brake
lining is at its minimum thickness.
Continued driving is possible. Have the
brake lining replaced as soon as possible.
Once new brake linings are fitted, do not
brake unnecessarily hard for the first
125 miles (200 km).
163