Greeting
I also have the same car. AdBlue are more or less all the same, but maybe you should still choose reputable manufacturers like BASF, etc.
watch the date of manufacture, do not buy if it is older than 12 months.
Maybe they are the freshest at gas stations after all.
I would recommend you an adblue additive that keeps the system and nozzle clean:
Tunap microflex® 986 active add-on for Adblue
https://media.tunap.com/stmedia/tuna...etWithLogo.pdf