Vauxhall TIGRA Owner's Manual page 186

182 Service, Maintenance
Antifreeze and corrosion protecti on
Before the start of winter, have a w orkshop
check the a ntifreeze protection. The
antifreez e lev el must guarantee protection
to approx. -28 ° C. Insuffic ient antifreez e
will reduc e the frost protec tion level and
the c orrosion p rotection. If necessary add
antifreez e.
If coolant loss is topped up with water,
have concentration checked and add
antifreez e if necessa ry .
Coolant lev el
Hardly a ny losses occur since the cooling
sy stem is sealed and it is thus rarely
necessary to top up the coolant.
The coolant should be a little above the
KALT/COLD ma rk in the expansion tank
with a cold cooling system. The coolant
level can also be read off from the outsid e
of the ex pansion tank.
9
Warning
Allow engine to cool down before
rem ov ing coolant filler cap. Remove filler
cap carefully so that pressure can escape
slowly , otherwise there is a risk of scalding.
When the engine is at op erating
temperature, coolant lev el rises. It falls
aga in when the system cools. If it falls
below the KALT/C OLD mark when the
system is cold, top up to the mark.
Top up a ntifreeze. If no antifreeze is
av ailable, top up with clean tap water.
If tap water is unavailab le, distilled water
can b e used.
After filling with tap water or d istilled
water, measure the antifreeze
concentration and ad d antifreez e if
required. H ave a workshop establish the
cause of the coolant loss.
Too low a coolant level can cause engine
dam age.
To close, position the cap and screw it into
place.