2. Maintenance

There are only a few exhaust system and emission control maintenance operations which should be carried out at specified mileage intervals, or after a certain period of service.

Volkswagen recommends inspection of the exhaust system every 15,000 miles (24,000 km), but it is a good idea to inspect it whenever the underside of the car is made accessible for other repair work. The system should be inspected immediately whenever it becomes unusually noisy, if exhaust can be smelled inside the car, or if damage is suspected.