Could only find the focus info ..which is also 1560cc
from the web "The belt replacement schedule depends on the date the car was built. Up to July 2011 it's 140,000km (86991 miles)or 10 years. After that it's 180,000km (111846 miles) or 10 years."
converted km to miles
me, i would change one every 80,000 and say 6 years..because 10 years is a hell of a long time!