Audi A6 Spark Plugs

Whereas diesels use compression ignition, gasoline engines need plugs generating electric sparks in the cylinders. Due to the significance of the task and severe environment where it has to be accomplished, the plugs need to be replaced once in a certain period. Without even one plug producing a sufficiently strong spark, your Audi A6 loses power, fuel efficiency, and increases the emissions level. Besides, unburnt hydrocarbons make no good to the exhaust system, contaminating the catalytic converter and oxygen sensor(s).

There is a number of signs signalizing about a failing plug. The check engine light that such a malfunction may trigger is the most obvious yet not always available one. A misfiring plug, however, shows itself at the extremes – after the cold start and when you drive at the top of the engine RPM range. It results in a somewhat erratic behavior of the engine and power drops. The service life of plugs, as well as their performance, heavily depends on the quality of electrode alloys, insulation, and overall design, which is why only plugs from dependable companies make sense. Get these at a reasonable price from our Audi A6 spark plugs selection.