Originally Posted by jheath
... get a jug of the DEF from the VW dealer once the factory covered maintenance is up. Like working on my own car and getting to know it.
They only thing you want to get from VW is the 1/2 gallon bottle because it has the correct fitting on it and you can reuse it. Get the DEF from an auto parts store or truck stop. Here in the states they run about $12 US for the 2.5 gallon container.