2005 Volvo S40 alternator belt replacement instructions?

To replace the alternator belt on a 2005 Volvo S40, first, disconnect the negative battery terminal to ensure safety. Remove any components obstructing access to the belt, such as the engine cover or air intake. Loosen the tensioner pulley using a wrench to relieve tension on the belt, then slide the old belt off the pulleys. Install the new belt following the correct routing diagram, re-tension the pulley, and reassemble any removed components before reconnecting the battery.