Per Honest John's website:
On 1.9CDTI, timing belt drives waterpump and waterpump failure can fling it off in as little as 40k miles, wrecking the engine. By December 2008 this was becoming increasingly common at about 4 years old and circa 50k - 60k miles. So engines need new belts, tensioners, pulleys and waterpumps before 4 years old or 50k miles.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.