I had a Xantia 1.9D for 9yrs from new, not the fastest but feck was it reliable.
Apart from the normal, tyres and wiper blades, the only thing I had to replace was a temperature sender unit.
A bit like like me 'casso, in 12 yrs it's cost me 1 x suspension spring, 1 x wheel bearing and a rear exhaust box as far as I can remember.