12 14 1 739 368 : Knock sensor for BMW Series 5 E34 518i M43

This knock sensor is intended for the BMW Series 5 E34 in its Saloon and Touring bodies, equipped with the M43 engine in 518i version. It ensures the detection of detonations in the engine block to allow the management unit to correct the ignition timing in real time. In the context of restoring or maintaining a classic vehicle, its replacement is essential to guarantee the proper functioning of the engine management system and preserve the mechanics. Allow for two units per vehicle for a complete replacement.