How often should the Volkswagen C-TREK's spark plugs be replaced?

2 Answers
Nathaniel
09/06/25 5:52am
The Volkswagen C-TREK's spark plugs should be replaced every 60,000 kilometers. Under normal maintenance conditions, car spark plugs are typically replaced between 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's recommended to follow the user manual. You can refer to the following standards for maintenance 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, 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 everything is 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 ignition wires in the correct firing order and secure the cover.
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MacAbel
09/18/25 5:40am
Regarding spark plug replacement, I've been driving a Volkswagen C-Trek for several years, and generally, spark plugs need to be replaced every 30,000 kilometers or so. Why is that? Spark plugs are responsible for ignition, and prolonged wear can make the car difficult to start, cause shaking, or even stalling. My neighbor once drove 40,000 kilometers without replacing them, and when starting the car, it made a clicking noise. Upon inspection, it turned out all the spark plugs were burnt out. For Volkswagen cars, using original spark plugs can reliably last up to 30,000 kilometers. During inspections, check if the engine shows abnormal shaking or lacks power during acceleration. During regular maintenance, have the technician inspect them—don’t overlook this. Replacing them early can save money and fuel. By the way, if you mostly drive in suburban areas with good road conditions, they might last longer, but in city traffic with frequent stops and starts, they’ll need replacement more often. Replacing spark plugs isn’t expensive, costing just a few hundred yuan, but neglecting them could lead to major repairs costing thousands.
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