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Thread: DEF Usage?
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Old 08-30-2012, 08:18 PM
firstbimmer firstbimmer is offline
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Location: North Bay, CA
Join Date: May 2006
Posts: 419
Mein Auto: 335d
My last two oil changes just have a reference to 'refill DEF'. They didn't list amount used in refill.

I think the failure to have some sort of quantity guage for the tanks really is a design flaw. My situation is a perfect example. They ended up putting two small containers in the active tank to appease me and said they would review at my oil change in 5K. It just really seems like they don't care about really finding out what the problem was, refill error or pump issues. If I could tell how much was left in the passive tank, then I would know immediately which one is the problem. Empty=refill issue Full=pump failure.

I already know they aren't going to take the issue seriously at the oil change. I can tell them straight to their face that they truly are wrong and they just say its normal and there's nothing I can do about it. Maybe I'll have to try another dealer for service as much as I'd rather not

I went back in today to talk to my salesman (not my service advisor) and told him I may be ready to upgrade to the 2013 NA M3 just to avoid turbos and DEF (My 2007 335i was a buyback) My commute is going from 140 miles a day to 35 a day come November. Maybe this was just good timing
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