VW Golf manuals

Volkswagen Golf Owners Manual: Coolant specification

First read and observe the introductory information and safety warnings

The cooling system is filled at the factory with a mixture of specially prepared water and at least 40% coolant additive G 13 (TL-VW 774 J). The coolant additive is dyed purple. This mixture of water and coolant additive gives the necessary frost protection down to -25°C (-13°F) and protects the alloy parts of the cooling system against corrosion. The mixture also prevents scaling and raises the boiling point of the coolant.

In order to protect the coolant system, the proportion of coolant additive must always be at least 40%, even if anti-freeze is not required in warm weather and warm climates.

If greater frost protection is required in very cold climates, the proportion of anti-freeze additive can be increased. However, the percentage of coolant additive should not exceed 60%, as this would reduce the frost protection and the cooling effect.

When topping up the coolant, a mixture of distilled water and at least 40% coolant additive - G 13 - or - G 12 plus-plus - (TL-VW 774 G) (both of which are dyed purple) must be used in order to obtain the optimum corrosion protection  . Mixing - G 13 - with the coolant additives - G 12 plus - (TL-VW 774 F), - G 12 - (dyed red) or - G 11 - (dyed blue-green) will significantly decrease the level of corrosion protection and should therefore be avoided  .

WARNING

Insufficient anti-freeze in the coolant system can cause the engine to break down and cause serious injuries.

NOTICE

Never mix genuine coolant additives with other coolants that have not been approved by Volkswagen. Mixing other coolants could cause serious damage to the engine and cooling system.

Coolant and coolant additives can pollute the environment. Spilt operating fluids must be collected and disposed of properly and with respect for the environment.

Warning lamp and coolant temperature display
Fig. 194 Coolant temperature display in instrument cluster: Ⓐ cold; Ⓑ normal; Ⓒ warning First read and observe the introductory information and safety warnings In normal driving conditio ...

Checking the coolant level and refilling coolant
Fig. 195 In the engine compartment: mark on the coolant expansion tank Fig. 196 In the engine compartment: coolant expansion tank cap First read and observe the introductory information and ...

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