Hi,
Got a B9 Audi displaying this error along with Engine Management Light staying on.
Tank is full and I had no previous Adblue Warnings about topping up.
Drove the car, Error goes away, then comes back a little later, but the Engine Management Light remains off. If the EML is off, then the Adblue Error stays on. In other words one warning remains.
The 650 Miles counts down so when down to 600 miles but when I park up, it reverts back to 650 miles.
This makes me think this is software error but if it's not, would the error disappear and then come back.
Took to local mechanic and these errors are coming up:
First time it was scanned I got
P20E800: Reductant Pressure too Low
P2BAF00: NOx System Driver Inducement
Second time it was scanned I got:
P20E800: Reductant Pressure too Low
P208D00: Reductant Pump "A" Control Circuit High
P20C400: Reductant Pump "C" Control Circuit High
P2BAF00: NOx System Driver Inducement
They recommended replace everything including ECU. Just looking for advice.