2013 xf 3.0d S 107k miles. 4 weeks ago whilst overtaking on motorway at 70+mph engine died in outside lane with no fault lights. No error codes on diagnosis, water found in fuel filter so assumed contaminated fuel. New fuel filter, tank, pipes etc cleaned. Car drove fine but on way home having had 24 hours of road test died again when overtaking at 60 mph. System recleaned and all seemed OK until yesterday on the motorway it died again in outside lane. Again no fault codes, fuel pumps seem OK. Car had been driven at same speed, revs etc since fix. Jag specialist has been working on it. Ideas would be appreciated, ta.