How often should the spark plugs be replaced in a Volkswagen Lavida?

[IrisMarie]

Volkswagen Lavida spark plugs should be replaced every 40,000 to 60,000 kilometers. Spark plug replacement interval: Under normal maintenance conditions, replacement is recommended at 40,000～60,000 kilometers. However, this may vary depending on the brand and engine type, so it's advisable to follow the owner's manual. The following standards can be referenced for maintenance replacement: platinum spark plugs should be replaced at 40,000 km, ordinary nickel alloy spark plugs at 20,000 km, and iridium spark plugs at 60,000-80,000 km. Spark plug replacement procedure: Open the hood, lift the engine's plastic cover, remove the high-voltage distributor wires (mark each cylinder's position to avoid confusion), and use a spark plug socket to remove the spark plugs one by one. During removal, check for external debris like leaves or dust and ensure thorough cleaning. Insert new spark plugs into the holes, hand-tighten them a few turns before using the socket wrench to secure. Reinstall the high-voltage distributor wires according to the firing order and reattach the cover.