Volkswagen Golf 2021 Owner's Manual page 254

·
Make sure that the correct proportion of engine
coolant additive based on the lowest outside
temperature that is expected is used in the ve-
hicle.
·
In extremely low temperatures, the coolant can
freeze and the vehicle would be unable to start.
Because the heater will also no longer function
in that situation, vehicle occupants could freeze
if they do not have sufficient warm clothing.
WARNING
Gilt für Elektroantrieb #
Insufficient antifreeze in the vehicle cooling sys-
tem can cause malfunctions in the electric drive-
train, which can result in serious injuries.
·
Make sure that the correct proportion of engine
coolant additive based on the lowest outside
temperature that is expected is used in the ve-
hicle.
·
In extremely low temperatures, the coolant can
freeze and the vehicle would be unable to start.
Because the heater will also no longer function
in that situation, vehicle occupants could freeze
if they do not have sufficient warm clothing.
NOTICE
Never mix Genuine Volkswagen coolant additives
with coolants that are not approved by Volkswagen.
·
Gilt für Verbrennungsmotoren # If the fluid in the
coolant expansion tank is not pink-colored (the
color comes from the mixture of the purple cool-
ant additive with distilled water) but is, for exam-
ple, brown instead, the suitable engine coolant
was mixed with another engine coolant that is
not suitable. In this case, have the engine coolant
changed immediately. Otherwise, serious mal-
functions or damage to the engine and cooling
system could occur.
Gilt für Hybridmotoren # If the fluid in the coolant
expansion tank is not pink-colored (the color
comes from the mixture of the purple coolant ad-
ditive with distilled water) but is, for example,
brown instead, the suitable engine coolant was
mixed with another engine coolant that is not
suitable. In this case, have the engine coolant
changed immediately. Otherwise, serious mal-
functions or damage to the hybrid drive system
and cooling system could occur.
Gilt für Elektroantrieb # If the fluid in the coolant
expansion tank is not pink-colored (the color
comes from the mixture of the purple coolant ad-
ditive with distilled water) but is, for example,
brown instead, the suitable engine coolant was
mixed with another engine coolant that is not
suitable. In this case, have the engine coolant
252 Checking and refilling
changed immediately. Otherwise, serious mal-
functions or damage to the electric drivetrain and
cooling system could occur.
fluids and dispose of them correctly according to en-
vironmental regulations.
Engine coolant specifications
Please read the introductory information and
heed the Warnings and Notice
The cooling system is filled at the factory with
a mixture of specially prepared water and at least
40% coolant additive.
Contact an authorized Volkswagen dealer or author-
ized Volkswagen Service Facility to find out which
engine coolant is suitable for your vehicle. Volkswa-
gen recommends contacting an authorized Volkswa-
gen dealer or authorized Volkswagen Service Facili-
ty.
To protect the engine cooling system, there must al-
ways be at least a 40% proportion of coolant addi-
tive. If greater freeze protection is needed due to
the climate, the proportion of coolant additive can
be increased. However, the proportion of coolant
www.carobook.com
additive must not exceed 60%, because otherwise
the freeze protection will be reduced and the cool-
ing effect will be decreased.
The engine coolant additive can be recognized by its
purple color. The mixture of water and coolant addi-
tive provides freeze protection down to -13 °F
(-25 °C), protects the aluminum alloy parts of the
cooling system from corrosion, prevents limescale
deposits, and increases the boiling point of the cool-
ant.
If the engine coolant is being topped up, a blend of
distilled water and at least 40% of an appropriate
engine coolant additive must be used to ensure opti-
mum corrosion protection → page 251.
Insufficient freeze protection in the engine cooling
system can cause engine malfunctions, which can
result in serious injuries.
·
Make sure that the correct proportion of engine
coolant additive based on the lowest outside
temperature that is expected is used in the ve-
hicle.
·
In extremely low temperatures, the coolant can
freeze and the vehicle would be unable to start.
Because the heater will also no longer function
Engine coolant and coolant additives can harm
the environment. Catch any leaking operating
WARNING
on page 251.