How often should the spark plugs of the Touran be replaced?
2 Answers
The spark plugs of the Volkswagen Touran should be replaced every 60,000 to 70,000 kilometers. Under normal maintenance conditions, car spark plugs are typically replaced after 40,000 to 60,000 kilometers of driving. However, this may vary depending on the brand and engine type, so it is recommended to follow the instructions in the owner's manual. The following standards can be referenced for maintenance and replacement: platinum spark plugs should be replaced at 40,000 kilometers, standard nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. Steps for replacing spark plugs: Open the hood, lift the plastic cover of the engine, and remove the high-voltage ignition wires. Mark each cylinder's position 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 high-voltage ignition wires in the correct firing order and secure the cover plate.
My old Touran has been running for almost ten years, and I've changed the spark plugs three times. Generally, 4S shops recommend checking them every 20,000 kilometers and replacing them around 30,000 kilometers. But it also depends on the material of your spark plugs. Ordinary nickel alloy ones do need more frequent replacement, while upgrading to platinum or iridium ones can last 40,000 to 60,000 kilometers. Last time my car shook during cold starts, the mechanic found two spark plugs with yellowed ceramic bodies and the electrode gap almost as thick as a coin. Don’t make the same mistake of delaying too long like I did. Worn-out spark plugs not only waste fuel but can also severely damage the catalytic converter, making repairs painfully expensive.
