Hi i have an audi a4 and i over filled the coolant once so all the antifreeze came out since than everytime i fill it to the right amount i could drive for a couple of moles but than it starts to leak it slowly and i cheked the tank and its not from there and neither from the hose so can anyone give me an idea

Audi a4
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Hi You may have to replace the system pressure cap. Also check to see if the system is under pressure soon after starting the engine if it is it could be Head Gasket, my money is on the anti-free reacting with the rad cap (for your sake), have a look at the over flow hose to see if the end is whet after a short drive. Let me know how you get on and any more info that would help me this end. Regards David