Quote:
Originally Posted by jnecr
I guess I'm a bit confused. Is the passive tank leaking and therefore empty? If that's the case, why didn't the 1000 mile warning pop up as soon as it was empty?
I also figured that the 1000 mile warning is dependent on how much DEF is in the tank, no? I.e. if the tank were empty it would be less than a 1000 mile warning.
I'd buy some DEF and throw it in there, the stuff is dirt cheap.
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The OP started this thread here and in the Maintenance section - that's been where the replies have been posted.
The OP also states (please re-read) that the passive tank is "smashed", so of course it's leaking.
The warning is predicated only upon the active tank, which contains around 2.5 gallons, which will last like 8K-10K miles.
I suggest you go here and download/read the PDF's on the engine and SCR system (OP could do that, too!)
http://www.bimmerfest.com/forums/sho...8&postcount=40