2. When replacing the timing belt or chain, it is necessary to replace the tensioner.

3. Even if the timing belt or timing chain is not damaged, it should be replaced regularly, because it is difficult for naked eyes to find that the timing belt is broken. Once found, it must be replaced as soon as possible.

4. Generally, the timing belt should be replaced after 60000 kilometers. Even if you have a timing belt in your car, you can't change it once it breaks down. Therefore, when the total mileage reaches 60,000, it is recommended to consider replacement. The timing belt is behind the water tank fan.

Mercedes-Benz BMW Audi special Tianlong store. The car mechanic in their shop is famous around. Many customers are recommended by customers who have been there. Relatively speaking, it is cheaper than 4S stores, but it is not worse than 4S stores in all aspects.