If the ad-blue tank has been “accidentally” filled with anything else, the tank needs to be replaced,or cleaned out with a water soluble degreaser, then washed out with ad-blue, the system then needs cleaning out, and possibly the sensors replacing…
If the ad-blue tank has been “accidentally” filled with anything else, the tank needs to be replaced,or cleaned out with a water soluble degreaser, then washed out with ad-blue, the system then needs cleaning out, and possibly the sensors replacing…