After a fixed mileage the timing belt of your Renault will need replacing. It is essential never to delay or neglect this upkeep as it's about the life of your engine. Not replacing your timing belt on time may cause irreversible damage to your Renault. To find out when to replace your Renault timing belt, check the manufacturer's instructions. Generally it will be every 62 000 miles or every five years depending on how much you drive.