How to change the timing belt on a 2002 Volvo S60?

To change the timing belt on a 2002 Volvo S60, first, disconnect the battery and remove the engine covers. Then, align the timing marks on the crankshaft and camshaft, and remove the old timing belt along with any tensioners or pulleys. Install the new belt, ensuring it is properly tensioned and aligned with the timing marks, then reassemble all components and reconnect the battery. It's advisable to consult a service manual for specific torque specifications and detailed instructions.