Vauxhall Combo Owner's Manual page 190

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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 in the compensation tank
should be slightly above the KALT/COLD
mark with the cooling system cold. It rises
when the engine is warm and falls again as
it cools. If it drops below the marking in this
case, it should be topped up to a level just
above the marking.
9
Warning
Allow engine to cool down before
removing coolant filler cap. Remove filler
cap carefully so that pressure can escape
slowly, otherwise there is a risk of
scalding.
Top up anti-freeze. If no anti-freeze is
available, top up with clean tap water.
If tap water is unavailable, distilled water
can be used.
After topping up with tap or distilled water,
have the anti-freeze concentration
checked, and anti-freeze added if
necessary. Have the cause of the coolant
loss remedied. We recommend that you
consult your Vauxhall Authorised Repairer.
When closing the cap, insert it straight and
screw it in all the way.
Maintenance, Service Plan
Coolant temperature
If the temperature gauge is in the red zone,
coolant temperature is too high. Check the
coolant level immediately:
z Coolant level low:
Top up coolant. Pay attention to the
instructions given under "Anti-freeze and
corrosion protection" and "Coolant
level". Have the cause of coolant loss
remedied. We recommend that you
consult your Vauxhall Authorised
Repairer.
z Coolant level OK:
Have the cause of increased coolant
temperature remedied. Consult a
workshop. We recommend your
Vauxhall Authorised Repairer.
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