Does BMW Need Matching When Replacing Spark Plugs?

[DelGriffin]

No, just replace it directly. Introduction to Spark Plugs: Spark plugs, commonly known as fire nozzles, function by discharging the pulsed high-voltage electricity sent through the high-tension leads, breaking down the air between the two electrodes of the spark plug to generate an electric spark, thereby igniting the air-fuel mixture in the cylinder. The purpose of the spark plug is to introduce tens of thousands of volts of high-voltage electricity into the combustion chamber and generate an electric spark to ignite the mixture, working in conjunction with the ignition system and fuel supply system to enable the engine to perform work, largely determining the engine's performance collectively. Types of Spark Plugs: Standard spark plugs, insulator-protruding spark plugs, electrode-type spark plugs, seat-type spark plugs, pole-type spark plugs, surface-gap spark plugs, etc.