Hello,
Unfortunately, I didn't. It took me many hours of browsing forums and engaging in further discussions with the garages before I decided to map out the unit.
Since I've conducted some research, may I advise you to consider the following: Check and clean the Adblue connections. Follow the pipes from the Adblue tank to the engine and see if you can identify any frost-like abrasions. If yes, replace the pipes. Also, try going for an extended ride; sometimes the nozzle can become blocked, and if you drive for a longer duration, it may clear the blockage. Lastly, if none of the above helps (this was my case), you should typically replace the Adblue pump as the sensor is integrated with the pump and cannot be replaced separately (expensive). I hope you'll find a straightforward solution. Oh, forgot to mention that you need to top up the Adblue. If your level is low, this can sometimes trigger the same error. Good luck.