When should you change a Volvo s40 cam belt?

You should change the cam belt on a Volvo S40 according to the manufacturer's recommendations, typically every 60,000 to 100,000 miles, depending on the engine type and model year. It's also advisable to replace it if you notice any signs of wear, such as cracks or fraying. Regular maintenance checks can help determine the best time for replacement to avoid potential engine damage. Always consult the owner's manual for specific guidelines related to your vehicle.