See more from Ask Carzone 
When to change a 171 Mondeo's belt?
When do I change a timing belt on a 171 1.5 diesel econetic mondeo
Our answer:
Hi Brian,
At least every 250,000km or ten years - whichever comes first.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.