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4.21.2 Checking coolant level, replenish cool‐
ant if necessary
– Check coolant level in expansion tank when engine is cold.
♦ Coolant level must be above „Min. marking“ -arrow-.
– In hybrid vehicles, check additional coolant reservoir.
– If coolant is too low, add required amount according to mixture
ratio.
Note
If fluid loss is greater than can be expected through normal use,
determine source and rectify (repair measure).
4.21.3 Mixture ratio:
Caution
Only distilled water may be used for mixing. Tap or well water
does not have the required quality to ensure the functionality
of coolant.
Frost protection to Coolant additive
G12 Plus Plus
Water
3)
-25 °C approx. 40 % approx. 60 %
-35 °C approx. 50 % approx. 50 %
-40 °C approx. 60 % approx. 40 %
3) Only use distilled water.
Touareg 2010 ➤
Maintenance - Edition 11.2011
48 4. Descriptions of work
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