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Ad Blue Incorrect Quality and 512 mile Warning

94K views 100 replies 38 participants last post by  donhall415  
Less of a problem - at the moment.
My XE (180 d) 2016 showed 2800 miles DEF remaining.
I topped up with a 3.5 litre (fresh bought) from Halfords, and didn't overfill.
Then did about 800 miles (no problems)
The car is STILL showing 2800 miles DEF remaining
Does this mean I have a problem about to rear its ugly wotsit?