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The coolant additive level in the coolant must be at least 40%.
The coolant additive may be increased to a maximum of 60%.
The correct mixing ratio of water and coolant additive is to be checked if nec-
essary by a specialist garage or is to be restored if necessary.
The description of the coolant is shown in the coolant expansion reservoir
» Fig. 230
on page 211.
WARNING
The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment
» page
206.
The coolant is harmful to health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the
■
engine is still warm. The cooling system is pressurized!
When opening the end cover of the coolant expansion reservoir, cover it
■
with a cloth to protect your face, hands and arms from hot steam or hot
coolant.
If any coolant splashes into your eyes, immediately rinse out your eyes
■
with clear water and contact a doctor as soon as possible.
Always keep the coolant in the original container, safe from people who
■
are not completely independent, especially children - there is a danger of
poisoning!
If coolant is swallowed, consult a doctor immediately.
■
Never spill operating fluids over the hot engine - risk of fire.
■
CAUTION
Do not continue if for some reason it is not possible to fill with coolant un-
■
der the current circumstances! Switch off the engine and seek assistance from
a specialist garage.
If the expansion tank is empty, do not top up with coolant. The system could
■
ventilate - there is a risk of engine damage, not continue! Switch off the en-
gine and seek assistance from a specialist garage.
The concentration of coolant additive in the coolant must never be under
■
40%.
Over 60% of coolant additive in the coolant reduces the antifreeze protec-
■
tion and cooling effect.
A coolant additive that does not comply with the correct specification can
■
significantly reduce the corrosion protection of the cooling system.
Any faults resulting from corrosion may cause a loss of coolant and can con-
■
sequently result in major engine damage.
Do not fill the coolant above the mark
■
If an error occurs, leading to the engine overheating, the help of a professio-
■
nal garage is to be sought - there is a risk of serious engine damage occurring.
Additional headlights and other attached components in front of the air inlet
■
impair the cooling efficiency of the coolant.
Never cover the radiator - there is a risk of the engine overheating.
■
Note
The coolant capacity is approximately 1 l greater on vehicles that are fitted
with an auxiliary heater (auxiliary heating and ventilation).
Checking the coolant level
Read and observe
and
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir
» Fig. 230
Mark for the maximum permissible coolant level
A
Mark for the lowest permissible coolant level
B
The coolant level should be kept between the marks
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open.
» Fig. 230
on page 211.
A
Fig. 230
Coolant expansion reservoir
on page 211 first.
and
.
A
B
Inspecting and replenishing
211
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