Hello: I have to reset the message about def quality.
I had this last year directly after fuelling, just now I have it again.
Last year we stopped close to a dealer, as there are only 4 in Mexico, but that was in the middle of the cartel unrest. Now we are close to a dealer, 3 hrs away, but that will be a large cost.
All the dealer did last year was a reset.
I would like to buy an obd2 reader which can reset this.
Apparently a KINGBOLEN K7 can do it, but are there cheaper options?

Desperate, as we cannot have the car break down in the middle of no where :-)
2017 discovery 5 td6