At their installation, the correct torque is to be observed under any circumstances. It ensures the spark plugs’ exact positioning and orientation within the combustion chamber.
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Different electrode alloys to meet the specific requirements of each engine
Depending on the type of engine, the demands modern engines place on spark plugs vary a lot. In close cooperation with the car manufacturers, Bosch thus develops original equipment spark plugs geared to the specific requirements of each engine. For this purpose, Bosch engineers rely on comprehensive know-how and decades of experience in the fields of gasoline injection and ignition systems.
During spark plug production, for instance, Bosch uses different electrode alloys featuring different advantages – among other things – to meet the specific requirements of each engine. Special production techniques – such as a nickel-plating process for thread and housing developed by Bosch and also used for the new EVO spark plugs – ensure improved corrosion protection and long service life.
