Advice for buyers
What should I look for in a used Jaguar XJ saloon?
The Jaguar XJ is heavy on its suspension, so listen out for clonks that may come from worn suspension bushes around the car, especially if you turn into a corner quickly.
Keep an eye out for smoke from the back of the car. A little black smoke under heavy acceleration on diesel versions is par for the course, but white or blue smoke on any model will be a sign of a more serious issue.
XJs are renowned for suffering from corrosion, which is quite a feat given that they’re made from aluminium. The problem is thought to be the steel rivets which bind the aluminium body together; the interaction of the two metals creates corrosion in the aluminium panel, which is already affecting some cars and can cause problems further down the line.
Diesel versions feature particulate filters that need to be cleaned out. Fortunately, they do this themselves, but need a run at motorway speeds every couple of weeks in order to be able to do this. So, if your driving is mainly around town, you'll probably be better off with a petrol model.