Hi I have had the following message appear on the dashboard of my Jaguar XF 2.0D, 66 reg. "Incorrect diesel exhaust fluid quality detected no engine restarts in xx miles" (counting down). I took it to my local independentgarage and they investigated and tried resetting it but to no avail. Their diagnostics said all sensors are working OK and that they called Jaguar and were told that if it was topped up with adblue and run then the fault could clear itself. A few questions based on this: 1. Can this fault clear itself? A bit of a Google hasn't given the indication that this is the case. 2. Is there some kind of software issue that needs updating, I have seen this as a solution in some forums. 3. If it doesn't reset itself, is it worth getting the adblue tank drained and refilled, could this resolve the issue? 4. Or should I bite the bullet and take it to Jaguar...who always squeeze every last bit of money out in my experience.