How often should the spark plugs be replaced in a Golf VII?

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For the Golf 7, spark plugs should be replaced every 30,000 to 50,000 kilometers. The replacement interval varies depending on the material of the spark plugs. Under normal maintenance conditions, they should be replaced after driving 40,000 to 60,000 kilometers, but this may differ based on the brand and engine. It is recommended to follow the owner's manual. You can refer to the following standards for maintenance and replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary 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 engine's plastic cover, remove the high-voltage distributor wires, and 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 cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage distributor wires in the firing order and secure the cover.