How do you fit a fan belt on a peugeot 206GTI?

To fit a fan belt on a Peugeot 206 GTI, first ensure the engine is cool and disconnect the negative battery terminal. Release tension on the old belt by loosening the tensioner pulley and remove the belt from the pulleys. Route the new fan belt according to the belt diagram typically found on the engine bay or in the manual, ensuring it sits correctly on all pulleys. Finally, adjust the tensioner to achieve the proper tension on the new belt, recheck the alignment, and reconnect the battery.