[Bamm]

I had the warning on as wel, drained flushed and refilled the tank.
Removed the ad blue injector (I did not took the feeder hose off) and cleaned the injector with hot water. And cleaned the exhaust intake with a vacuum cleaner and a screwdriver.
I drove the car for 50 km on the highway but the message is stil there.
Tomorrow to the garage a have them reset the fault, I hope that's it.

See attachment for the dirty intake and injector.

 

[Bamm]

Today to the garage, http://www.hartendorp.nl/merken/ They tried to reset several function's in the computer but the measage stil there and counting down. They were gone contact Jaguar to ask for assistance and will call later on the day.
I drove away and noticed that the message has changed from ad blue quality to ad blue injector quantity. And yes!!!!!!! after 20 minutes on the highway the message is gone!!!!!!

 

[Bamm]

It's a strange complain. It looks like there are more complain's but they are in some sort of order.
Main complain is;

#1 Quality AD Blue
But it seems that there is no sensor that measures the quality, it looks like the NOX sensor is measuring something and relates it to the quality of the AB Blue. (NOX values after injection)

#2 AD Blue injector quantity
This one comes up when you clear the quality Fault #1. The quality fault has a higher priority so you have to clear that one first.
I think this one comes up due to temp droppings, but why after the quality fault...... I think this is the major problem.

And then above all why do they come on after a refill with overfill occurrence? There is an ultrasonic level sensor installed and the waves need to bounce back from the top level of the fluid and this is not happening when overfilled, the the waves bounce from the tank.

If there is somebody who has more information please share so we can tackle this complain.

There is also a lot of information about this complain on some Land Rover forums (they use the same engine set up)

Oh and don't start poking in the injector nozzle use hot water to clean it

 

[Bamm]

Same as my measage/problem.
Clean the ad blue injector and the exhaust Ad blue inlet and have a highway run for 20-30 min then the message wil disappear .