If its ticking over unevenly with a regular beat it could be down on compression on one cylinder, or be down to a dodgy injector, but try the other advice first.
Hi
I am in Poole Dorset and i am about get rid of a mk1 xantia which i have been stripping for parts, i have an aerial on the car which does nt leak ! I have the cenral locking solonoids still too which might help ?
What engine is your car ? lots left !
I am sure i can help you with your problems
1999 Xantia exclusive 110BHP !! Now RIP !!
2002 C5 estate 110 hdi, Happily sold on !!!