What spark plug does Audi a4l use?

Questioner: Paul Su's best answer depends on the quality of the spark plug. If it is an ordinary spark plug, it should be replaced after 200,000-300,000 kilometers under normal circumstances. Platinum-iridium spark plugs with good quality have a long service life of 60,000-80,000 kilometers and can be replaced. Normally, the spark plug needs to be replaced only when it is overhauled. The brake oil and gearbox oil of spark plugs should be replaced every 60,000 kilometers for major maintenance. Need to clean the throttle nozzle, three-way catalyst and intake carbon deposit. Extended information: In the ignition system of gasoline engine, high voltage current is introduced into the cylinder to generate electric spark to ignite combustible mixture. The side electrode is welded on the shell and mainly consists of a connecting nut, an insulator, a connecting screw, a center electrode, a side electrode and the shell. Reference: Spark plugs