How often should the spark plugs be replaced for the Sagitar 1.4T?

[VanPiper]

The replacement interval for the Sagitar 1.4T spark plugs mainly depends on the mileage. It is recommended to replace the spark plugs once every 40,000 to 60,000 kilometers. Spark plugs are a crucial component of the gasoline engine's ignition system. They introduce high-voltage electricity into the combustion chamber and generate sparks by jumping across the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. Steps to replace the spark plugs: Open the hood, lift the plastic cover of the engine, and remove the high-voltage ignition wires. Mark the position of each cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plugs into the spark plug holes, hand-tighten them a few turns, and then use the socket to tighten them further. Reinstall the removed high-voltage ignition wires in the correct firing order and secure the cover.