| 摘要 |
A device and a method for determining the freezing point of a washer fluid with a heater for heating the washer fluid. The invention provides a temperature sensor, which provides continuous electric signals, which represent the current temperature values of the washer fluid, and an analyzing and controlling unit, which ascertains the temperature behavior of the washer fluid from the signals and determines the characteristic values of the washer fluid from the ascertained temperature behavior.
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