How do you fit fan belt on corsa 1.2?

To fit a fan belt on a Corsa 1.2, first ensure the engine is off and cool. Loosen the tensioner pulley to relieve tension on the old belt, then remove it. Route the new belt according to the belt diagram, typically found on a sticker in the engine bay. Finally, re-tighten the tensioner to secure the new belt in place, ensuring it has the correct tension.