SantaFe AdBlue Error

Indeed, I have encountered a similar predicament with my previous vehicle, a 2017 Peugeot 3008. The symptoms you delineate suggest a malfunction within the Selective Catalytic Reduction (SCR) system, responsible for diesel exhaust emissions control via AdBlue. Such a deficiency may compromise fuel efficiency and elevate emissions. I would inquire, have you observed any service lights illuminated concurrent with these error notifications?

Thanks for the insight. Yes, the service light is on as well. Given your experience with the Peugeot, does this sound like a tank issue, or could it be something else within the SCR catalyst system? How did you resolve the problem on your car?

Given the supplementary validation afforded by the illumination of the service light, it is my considered opinion that a defect within the AdBlue delivery apparatus is highly probable. In the instance of my Peugeot, the root cause was indeed traced to a malfunctioning AdBlue tank. While I possess neither the diagnostic tools nor the requisite expertise to definitively ascertain the specific etiology of your vehicle's predicament, I would proffer the recommendation that you avail yourself of the services of a qualified automotive technician. They will have the diagnostic capabilities to check the SCR catalyst.

Appreciate the advice! Took it to the shop, and you were spot on. The AdBlue output from the tank was defective. Cost me 250€ to get it sorted. Thanks again!