How do you replace the serpentine belt on a Nissan 350z?

To replace the serpentine belt on a Nissan 350Z, first, ensure the engine is off and cool. Locate the tensioner pulley and use a wrench to relieve tension on the belt, allowing you to remove it from the pulleys. Install the new belt by following the routing diagram, typically found on a sticker under the hood. Finally, release the tensioner to secure the new belt in place and check its alignment.