Maintenance 6
Maintenance as required
WARNING
Coolant and coolant additive are hazardous to your
health.
– Please observe safety regulations when working
with coolant; see ⇒ Chapter "Coolant", P. 3-35.
– Check the coolant concentration.
Coolant concentration
CAUTION
Risk of corrosion!
The percentage of coolant additive must always
be at least 40%, even if the frost protection is not
needed in warmer climates.
If greater frost protection is required for climatic
reasons, the percentage of the coolant additive can
beincreasedtoupto60%.
The percentage of the coolant additive must not
exceed 60%, otherwise the frost protection is redu-
ced. In addition, the cooling effect is also reduced.
Only use clean, softened water for the water com-
ponent.
Frost protection
up to °C
Water percentage
%
Coolant additive percentage
%
-25 60 40
-30
55
45
-35 50 50
-40 40 60
Filling quantity in the cooling system; see
⇒ Chapter "Maintenance data table", P. 6-186.
CAUTION
Coolant additive with a different specification must
not be mixed in!
– For topping up, use coolant as per the mainte-
nance data table; see ⇒ Chapter "Maintenance
data table", P. 6-186.
Only use the coolant additive stipulated in the ma-
nufacturer’s guidelines.
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