| Carry out the following work: |
Note | The amount of water used in the coolant mixture has a great influence on its effectiveness. Because the water quality differs from country to country and even region to region, Volkswagen has decided to define the quality of the water to be used in the coolant system. Distilled water fulfils all requirements. It is therefore recommended that distilled water be mixed with the coolant whenever an older model's coolant is replenished or replaced. For newer models (model year 2010 ►) the use of distilled water is absolutely essential and compulsory. |
Caution | Only distilled water may be mixed with G12 plus-plus. The use of distilled water ensures optimum protection against corrosion. |
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| Use only coolant additive G12 plus-plus in accordance with „TL VW 774 G“. |
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| The coolant additive G 12 plus-plus must only be mixed with G 12 plus. |
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| Use coolant additives marked „according to TL VW 774 G“ or „according to TL VW 774 F“. |
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| These Coolant additives prevent frost and corrosion damage, scaling and also raise boiling point of coolant. |
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| For these reasons, the cooling system must be filled all-year-round with a coolant and corrosion protection additives. |
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| Thanks to this rise in the boiling point, the coolant guarantees good running, even when the engine undergoes heavy strain, especially in countries with tropical climates. |
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| The frost protection must be guaranteed to approx. -25 °C. |
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| The anti-freeze protection should be guaranteed to about -35 ºC in arctic climates. |
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| The concentration of the coolant must not be reduced by adding water in summer or in countries with hot climates. The amount of anti-freeze in the coolant must be at least 40 %. |
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| If a stronger anti-freeze mixture is necessary due to harsher weather conditions, it can be increased using G 12 plus-plus. It may only be strengthened, however, to 60% (antifreeze protection to about -40°C). Otherwise, the antifreeze protection will be reduced again and the cooling effect will be impaired. |
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| If radiator, heat exchanger, cylinder head or cylinder head gasket has been replaced, do not reuse old coolant. |
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| The Refractometer -T10007A- is recommended for determining the current anti-freeze density. |
| Recommended mixing ratios (use only distilled water for mixing): |
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WARNING