After a fixed mileage the timing belt of your Nissan 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 Nissan. To find out when to replace your Nissan 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.