When do you change the timing belt of a Volvo s40?

The timing belt on a Volvo S40 should typically be replaced every 70,000 to 100,000 miles, or according to the manufacturer's recommendations found in the owner's manual. It’s important to check for specific intervals based on the engine type, as maintenance schedules can vary. Additionally, if there are signs of wear, such as fraying or cracking, it should be replaced sooner. Regular inspections can help prevent potential engine damage from a failed timing belt.