Engines with an ignition system that does not have moving elements (all engines except 316i, 318i manufactured before August 1993) (BMW 3 Series E36)

The operation of the spark plugs is controlled without moving elements only by the control unit; there is no mechanical ignition distributor.

Thanks to the "fixed distribution circuit" without a mechanical distributor runner, there are no parts subject to wear and failure, in addition, the ignition timing is adjusted with greater precision. Radio interference filtering is improved, since there is no sparking of a conventional ignition distributor.