Check the radiator cap... make sure that the spring is still in one piece, and that any rubber gaskets are not chewed up. Inspect the seating surface on the tank itself - sometimes crud builds up on there.

If the radiator itself is not leaking, I would try flushing it first, before replacing it. (do a search for citric acid flush)

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D