Crucially: You should consult your Ford service manual or a Ford dealership to confirm the exact recommended interval for your specific car's engine code. The manual will provide the most accurate information and may specify a different interval based on factors like driving conditions.
Ignoring a cam belt replacement can lead to catastrophic engine damage, so it's vital to adhere to the manufacturer's recommendations. If you are unsure about the age or mileage of the existing belt, it's best to have it inspected by a mechanic.