Opel Antara Owner's Manual page 195

Check diesel fuel filter at shorter intervals if
the vehicle is subjected to extreme
operating conditions such as high humidity
(primarily in coastal areas), extremely high
or low outside temperatures and
substantially varying daytime and night-
time temperatures.
If there is water in the diesel fuel filter,
N
control indicator illuminates in the
instrument panel - see page 73. Drain the
water immediately.
Coolant
During operation, the system is
pressurized. The temperature may
therefore rise to over 100 °C.
The antifreeze provides excellent corrosion
protection for the cooling and heating
system, as well as freeze protection down
to -28 °C.
Certain types of antifreeze can lead to
engine damage. We therefore strongly
recommend the use of antifreeze that has
been approved by Opel.
9
Warning
Antifreeze is a danger to health: it must
therefore be kept in the original container
and out of the reach of children.
Antifreeze and corrosion protection
Before the start of the cold weather season,
have the coolant checked for correct
concentration by a workshop. The amount
of antifreeze must provide protection down
to approx. –28 °C. If the antifreeze
concentration is too low, this reduces
protection from freezing and corrosion.
Top up antifreeze if necessary.
If coolant loss is topped up with
demineralised water, have antifreeze
concentration checked and more
antifreeze added as necessary.
Self-help, vehicle care
Coolant level
Hardly any losses occur since the cooling
system is sealed and it is thus rarely
necessary to top up the coolant.
The coolant level in the expansion tank
should be between the MIN and MAX
marks when the system is cold.
195
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