The hydrometer is available in the sale of related auto goods. Regularly, before the start of winter operation, based on safety conditions, it is necessary to check the concentration of antifreeze, especially if sometimes pure water was added.
1. Warm up the engine by driving until the upper radiator coolant hose is warm to the touch.
2. Carefully open the expansion tank cap.
Caution! Do not open when the engine is hot.
3. Fill the hydrometer with coolant and determine the density of the coolant using the float. In our latitudes, the liquid should not freeze at -25°C, and at extreme cold at -35°C.
[The original information is posted on the website: www.VWManual.ru]
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