To reset the AdBlue level indicator after filling, use Guided Fault Finding Function/Component selection to perform the SCR system functions test plan, available under Drivetrain > 01 –CKRA – Engine –J623 > 01-systems capable of self-diagnosis > 01 – Diesel-direct fuel inj. and glow plug system EDC 17 > 01 – Engine electronics functions.
Idk man. It might. There's no definitive answer to that question because of the nature of the fault. If it has failed in such a way that keeps reading 200 miles forever, then no it should not prevent the car from starting. BUT.. If it has failed in such a way that at any moment the reading could drop to zero miles left, yes it could prevent Having the same problem on my 2015 Passat. Just had the tech hook up the computer and reset the system, but I still get the warning that I need an oil change. The MFD shows 1/2 screens with the warning. Screen 2/2 tells me that he interval is 10,000 until next oil change and 20,000 until next inspection.