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| Only use coolant additive “G 12” in accordance with TL VW 774 D. Identification: coloured red |
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| On no account must “G 12” be mixed with other coolant additives! |
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| If the fluid in expansion tank is brown, “G 12” has been mixed with other coolant. In this case the coolant must be changed. |
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| “G 12” and coolant additives marked In accordance with TL VW 774 D prevent frost and corrosion damage, scaling and also raise boiling point of coolant. For this reason the system must be filled all year round with frost and corrosion protection additives. |
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| Because of its high boiling point, the coolant improves engine reliability under heavy loads, particularly in countries with tropical climates. |
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| Protection against frost must be assured to about -25 °C (in arctic climatic countries to about -35 °C). |
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| The coolant concentration must not be reduced by adding water even in warmer seasons and in warmer countries. The anti-freeze ratio must be at least 40 %. |
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| If for climatic reasons a greater frost protection is required, the amount of “G 12” can be increased, but only up to 60 % (frost protection to about -40 °C), as otherwise frost protection is reduced again and cooling effectiveness is also reduced. |
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| If radiator, heat exchanger, cylinder head or cylinder head gasket is replaced, do not reuse old coolant. |
| Recommended mixture ratios: |
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