How Often Should the Spark Plugs on a Volkswagen Jetta Be Replaced?

[BennettDella]

Volkswagen New Jetta's original spark plugs should be replaced every 20,000 kilometers. The model is Bosch FR7DC+, which is a nickel alloy resistance-type spark plug. Under normal maintenance conditions, spark plugs should be replaced after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine, so it is recommended to follow the user 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. Spark plugs are an important component of a gasoline engine's ignition system. They introduce high-voltage electricity into the combustion chamber and create a spark by jumping the electrode gap, thereby igniting the combustible mixture in the cylinder. They are installed on the side or top of the engine. In the past, spark plugs were connected to the distributor via ignition cables, but in the last decade or so, most car engines have switched to direct connection between the ignition coil and the spark plug.