Should I change the belt on my Land Rover Discovery now or wait?

I have been given differing advice on the belt change intervals for my 2011 61-plate Land Rover Discovery 4 TDV6 HSE. It has done 45,000 miles and someone has recommended a change due to the age of the car but others have said it's too young still and wait for a year or so. Is it a major problem if I delay and get it wrong?
Belts do fail on this engine so while it may seem well within the limits I'd be getting nervous. I'd have belt, tensioners, waterpump and aux belt all changed. If the belt fails it could effectively scrap the car at Land Rover engine prices.
Answered by Honest John on

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