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| Place drip tray for workshop hoist -VAS 6208- or drip tray -V.A.G 1306- under engine. |
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| Unscrew the drain plug -arrow- at coolant hose (bottom left) and drain off coolant. |
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| The cooling system is filled all year round with a mixture of water and radiator antifreeze/anti-corrosion agent. |
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| Only use coolant additive G 12+ in accordance with TL -VW 774 F-. Other coolant additives could seriously impair in particular the anti-corrosion properties. The resulting damage could lead to loss of coolant and consequently to serious engine damage. |
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| Coolant additive G12+ can be mixed with additives G11 and G12. |
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| G 12+ and coolant additives marked "meeting specification TL -VW 774- F" prevent frost and corrosion damage as well as scaling. Such additives also raise the boiling point of the coolant. For these reasons the cooling system must be filled all year round with the correct antifreeze and anticorrosion additive. |
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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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| Frost protection is required down to about –25 °C (in countries with arctic climate: down 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 antifreeze concentration must be at least 40 %. |
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| If greater frost protection is required in very cold climates, the amount of G 12+ can be increased, but only up to 60 % (this gives frost protection to about -40 °C), as otherwise frost protection is reduced again, as is cooling effectiveness. |
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| Use only clean tap water for mixing coolant. |
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| If radiator, heat exchanger, cylinder head, cylinder head gasket or cylinder block are renewed, do not reuse old coolant. |
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| Contaminated or dirty coolant must not be used again. |
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| For checking anti-freeze protection in cooling system, use refractometer -T10007- for coolant additive G12+. |
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