I bought my beloved XF (2011 3.0 Diesel) 6 years ago, at 12 months old with 12,000 miles on the clock. It is now 7 years old, with almost 90,000 miles (hasn't been used much for the past 3 years). I intend to keep it for a few more years yet, so being a responsible owner, I just had a new timing belt fitted at the local dealership (£625 "deal" from Jaguar). Jag recommend replacing it at 7 years or 112,000 miles.
I'm convinced the (3-litre V6 diesel) engine sounds a little bit smoother now (always felt good, still does), but that must be placebo effect, surely? Replacing the timing belt is just avoiding a problem in the future, isn't it?
I've never had a new timing belt fitted before, not sure what to expect. All the pistons and cylinders are the same 7-year-old kit, so I must be imagining it?
Please tell me if I'm wrong