The replacement interval for Touran spark plugs is 25,000 kilometers or 18 months. Below are the precautions for replacing Touran spark plugs: Avoid prolonged carbon buildup accumulation: During use, normal carbon buildup will form on the spark plug electrodes and the insulator skirt. If this carbon buildup is not cleaned regularly, it will accumulate over time, eventually leading to electrode leakage or even failure to spark. Therefore, carbon buildup should be cleaned periodically, and cleaning should not be delayed until the spark plugs stop functioning. Avoid prolonged usage: There are many types of spark plugs, each with its own economic lifespan. Continuing to use spark plugs beyond their economic lifespan can negatively impact engine performance and fuel efficiency. Research shows that as spark plugs age, the center electrode tip gradually becomes rounded, while the side electrode develops a concave shape. This change increases the electrode gap, making discharge more difficult and affecting the engine's normal operation. Avoid improper cleaning: When performing maintenance tasks such as spraying silver powder on the engine or other procedures, care must be taken to keep the spark plug exterior clean. Dirty spark plugs can lead to leakage. For cleaning, do not use sandpaper or metal scrapers for convenience, as these can damage the ceramic insulator. Instead, soak the spark plugs in gasoline and clean them with a brush to ensure the ceramic body remains undamaged.
