Quote:
Originally Posted by turboawd
you didnt have to refill the DEF in 4500 miles?
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There is no indication that def will need to be refilled until it reaches 1000 miles only then a warning indicator will appear, and theirs no level gauge that you can look in I-drive, he most likely didnt have to touch def
Quote:
Originally Posted by MR97
No I didn't have to refill. My car has been back to the dealer 5 previous times before and they added DEF 4 of those times at an average interval of ~9000 miles between those visits. So I never needed to top it off before between scheduled maintenances. 4500 miles is out of the norm for me.
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Usually the dealer tops of DEF with every oil change.
Since you have this error message 4500 ago after they've service your vehicle and you didn't do any service on our own then its a good chance they are at fault and is likely trying to cover them self, keep pushing on this matter, if not maybe if you another BMW dealership send it over there for 2nd opinion, since you still have factory warranty.