Thread: DEF Draining
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      12-01-2013, 04:10 PM   #7
TDIwyse
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Drives: 2011 335d
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oldsankey, how did this work out for you?

I was able to gravity drain (it took a long time) 3.5 gallons out of the passive tank this afternoon. Let it drip/drain into 1 gallon washer fluid containers. Having something that would pull a vacuum would make it go a lot quicker.
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