NOT KNOWN FACTUAL STATEMENTS ABOUT PEUGEOT ADBLUE DELETE

He drove it for two months after which on the targeted traffic light-weight he threw out an error for Engine fault: Fix necessary - AdBlue Emissions fault.On this certain design the GT Line could be the adblue injection ahead of the dpf? IE could it have fired ad blue into the dpf. As I have had conflicting facts declaring this model is downstream