iFahrer - Führerschein Vorbereitung APP
Interactive preparation for the driving license test
Technical aspects / 2.7.04-201
Why does the coolant have to be checked for sufficient frost protection before winter begins?
So the coolant does not freeze
So the cooling system is not damaged by frost
So the vehicle's operating permit does not lapse
So the coolant does not freeze
So the cooling system is not damaged by frost
So the vehicle's operating permit does not lapse
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