I have dismantled it over the weekend and cleaned it carefully. placed the ad blu pipe in position as far as it goes and cliped the plastic clip on the injector. The computer messages have disappeared. I am driving it for 2 days now and looks fine. the connection method should have been better to ...

i Have a problem with the ad blu injector.
there is white crystals forming on the injector.
Should the supply pipe of the ad blu have a fastening clip to the clip on part that goes on the injector? Mine does not have. I am wondering if the ad blu leak is from there.