I'm going to bump this thread.

Our diesel is at the dealer once again for low exhaust fluid, only 900 miles after the last message and 1800 total miles. Once again, I don't believe it is really "low" but the sensor messed up again. We do park our vehicles in a garage too. We've been without our diesel for so long it is getting funny. I'm getting quite accustomed to the E90 loaners and like them more!

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