For reliability, even in summer, a mixture containing at least 40% antifreeze should be used. However, if you often add only water, then the concentration of antifreeze may not be sufficient for low temperatures. It also lowers the boiling point of the liquid. In this case, it is necessary to add G12 antifreeze. To do this, you first need to drain some of the coolant. The amount of fluid drained depends on how much antifreeze is actually in the coolant, and how much antifreeze should be contained in it after topping up.
If, due to climatic conditions, it is necessary to provide stronger frost protection, the proportion of antifreeze can be increased, but not more than 60% (while protection will be provided up to about minus 40 degrees), since with a further increase in the proportion of antifreeze, protection deteriorates.
For frost protection down to -25°C, the proportion of antifreeze must be 40% (3.2L G12 and 4.8L water), for protection up to -35°C, the proportion of antifreeze should be equal to 50% (4.0L G12 and 4.0L water). These values are valid for an amount of coolant of 8.0 liters, depending on the equipment of the car, this amount may be different.
1. At the bottom of the engine, remove the soundproof cover, under the radiator (engine) Place a clean container to collect spilled liquid.
2. Drain an appropriate amount of coolant.
3. Push on and secure the hose.
4. Add the required amount of antifreeze to the expansion tank. Top up collected fluid if necessary.
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