Ah, now I see, there are actually 2 tanks!!! Both not cheap and I assume both not so easy to access?

Would be interesting to see what tanks are having more problems.

I assume the OP is waiting on the Active DEF tank? Seems like more DEF tank problems are likely to start popping up in the near future.

I think everyone needs to be clear on what tank they are having problems with.

Oh what fun!

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2008 4.8i Black with Tabacco. Black Y-spoke wheels and shadowline trim.