Volkswagen Golf 1999 Service Manual page 251

Cooling system components, servicing
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- To drain coolant from engine also
remove coolant hoses from oil
cooler (arrows).
Note:
Observe waste disposal regulations!
Filling
Note:
Only use coolant additive G 12 in
accordance with TL VW 774 D.
Identification color: red
Under no circumstances must G
12 be mixed with other coolant
additives!
If the fluid in expansion tank is
brown, G 12 has been mixed
with another coolant. In this case
the coolant must be changed.
G 12 and coolant additives
marked "In accordance with TL
VW 774 D" prevent frost and
corrosion damage, scaling and
also raise the boiling point of
coolant. For this reason the
system must be filled all year
round with frost and corrosion
protection additives.
Because of its high boiling point,
the coolant improves engine
reliability under heavy loads,
particularly in countries with
tropical climates.
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