I looking at purchasing a 2013 XJL 3.0L AWD 70k miles and have read that the 5.0L prior to 2016 had a design problem with the timing chains. I would a like some feedback on the problems I might encounter with a 2013 3.0L engine, and also what are other weak points that will give me problems after 70k miles. Does the 3.0L have the same timing chain problem as the 5.0L ?

Thanks for your feedback,
Howard