How Often Should the Spark Plugs on a Tiggo 3 Be Replaced?

[StGage]

The replacement interval for spark plugs on a Tiggo 3 is 30,000 kilometers. Spark plugs are a crucial component of a gasoline engine's ignition system, as they introduce high-voltage electricity into the combustion chamber and generate a spark by jumping the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. If a spark plug is damaged, it can directly cause issues such as electrical leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant problem, however, is difficulty in starting the engine, which affects the vehicle's normal operation. Severe spark plug erosion—indicated by pitting, damage, or melted electrodes at the plug's tip—signifies that the spark plug is worn out and should be replaced. Steps for replacing spark plugs: Open the hood and lift the engine's plastic cover. Remove the high-voltage distributor wires, marking each wire according to its corresponding cylinder to avoid confusion. Use a spark plug socket to remove each spark plug one by one. While removing them, check for external debris such as leaves or dust and ensure the area is thoroughly cleaned. Insert the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to fully tighten it. Reinstall the removed high-voltage distributor wires in the correct firing order and reattach the cover.