How do you fit alternator belt for r reg Renault laguna 2 liter?

To fit the alternator belt on a Renault Laguna 2-liter (R-reg), first, ensure the vehicle is turned off and the battery is disconnected. Loosen the tensioner pulley by turning the tensioner bolt counterclockwise, then remove the old belt. Route the new belt around the alternator and the other pulleys according to the belt routing diagram, ensuring it's properly seated. Finally, re-tighten the tensioner to apply proper tension to the belt, and reconnect the battery.