Loading ...
Loading ...
Loading ...
205Checking and refilling levels
Coolant
Coolant specifications
Coolant is a mixture of water and at least 40% coolant addi-
tive.
The cooling system must be filled with a mixture of water and at least 40 %
of our coolant additive G 12++ or an additive with the specification TT-VW
774 G (known for its purple colour). This mixture provides the necessary
freeze protection down to -25°C and protects the alloy parts of the cooling
system against corrosion. It also prevents scaling and raises the boiling
point of the coolant.
The concentration of coolant must always be at least 40% - even if freeze
protection is not required.
If greater freeze protection is required in very cold climates, the proportion
of the antifreeze additive G 12++ can be increased. However, the percent-
age of coolant additives should not exceed 60%, as this would reduce the
freeze protection. It would also reduce the cooling effect. A mixture with
60% additive will give antifreeze protection to approx. -40°C.
WARNING
● The coolant additive is toxic. There is a toxic risk. Always keep the
coolant additive in the original container which should be stored out of
the reach of children. The same applies to coolant which you have
drained off.
● The coolant additive G 12++ must be added in sufficient quantities to
provide anti-freeze protection at the coldest ambient temperatures that
can be expected. At extremely cold outside temperatures, the coolant
could freeze, causing the vehicle to breakdown. As the heater would not
work either, there is a risk of freezing to death.
CAUTION
● Other additives may give considerably inferior corrosion protection. The
resulting corrosion in the cooling system can lead to a loss of coolant, caus-
ing serious damage to the engine.
● If additive G12++ is not available, this can be mixed with G12+, bearing
in mind that the protection against corrosion will be reduced.
Checking the coolant level and topping up
The correct coolant level is important for fault-free function-
ing of the engine cooling system.
Fig. 134 In the engine
compartment: Coolant
expansion tank cap
Before opening the bonnet, read and observe the warnings ⇒
in
Safety instructions on working in the engine compartment on
page 198.
Safety First Operating Instructions Practical Tips Technical Specifications
Loading ...
Loading ...
Loading ...