Ford intervals are 100,000 miles or 10 years thus the original change was done by age. However, despite it only being 5 years and 27,000 miles from the change not all cam belts are equal. It a genuine Ford belt was used you are fine for another 5 years or 73,000 miles, if a quality belt was used the same probably applies. If a cheapo belt was used who knows how durable the are.

One things certain, the tensioner and guide pulleys will probably die within the next 5 years as will the waterpump. All require cam belt removal to replace. So if you decide to do the cam belt now get the pulleys and waterpump done, will save you probably £400 in labour.