My dad is on his second mk4 mondeo 2.0 tdci.
First one was a 140 auto and is still going strong with 148k on it but it has just had about 2k spent on it at ford for a new timing belt,water pump,all new rear suspension and bushes plus other stuff.
The one he has got now is a 163 auto with around 40k ish (I think) other than a sensor failing its been faultless.
Really really nice cars to be in and they look pretty smart too in titx spec.