How do you fit an alternator belt on a Renault scenic 1.4 yr 99?

To fit an alternator belt on a 1999 Renault Scenic 1.4, first, locate the tensioner pulley and release the tension by using a suitable tool to turn it counterclockwise. Remove the old belt and route the new belt around the alternator, crankshaft, and other pulleys according to the belt routing diagram, usually found in the engine bay. Once the belt is in place, use the tensioner to apply the proper tension to the belt before securely attaching it. Finally, double-check the alignment and tension before starting the engine.