In the old coolant tank with the article 4G0121403D installed on #Audi #A6C7 from 2011 to 2014 (but this is not accurate) there is a package with silica gel to improve the performance of antifreeze. In some cases, this bag may break, then solid silica gel granules clog pumps, radiators, valves, etc., which subsequently causes various malfunctions of the cooling system.
To replace the purchased tank with the article 4G0121403AG, it is no longer silica gel. You will also need a minimum of 1.5 liters of antifreeze G12 or G13, for example, Swag 30938200 concentrate for dilution with distilled water 1:1
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Негізгі бет Audi A6 C7 replacement of the coolant Expansion tank
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