Hi, my car has been losing cooling water for quite some time. Today I have finally discovered the weak spot. It is directly leaking where the cooling water hoses are connected to the interior. Looks like a kind of “plug??”. At least the upper one is externally wet. Is this just plugged in at the place? Will it be leaking? I wonder now if I need the piece of hose new or if there is simply a seal between that can be renewed. I’ve taken some pictures once, if I’ve expressed myself incomprehensible. Can someone help me?