How the Camtronic System Works on Mercedes-Benz Engines [Video]
Being a mechanically-operated system with only an electronically-controlled actuator, Mercedes-Benz says that it can achieve about 80% of the benefits of a continuously variable system with their entire thingamajig only costing a fraction, while its built-in reliability being much higher because of less parts.
Also unlike variable valve lift systems from its competitors, Camtronic isn't made for enhancing the engine's power but to cut fuel consumption by a rather good amount, which some sources put at 4%.
Currently, the system is only used on the Mercedes-Benz 1.6-liter gasoline four cylinders (A-Class, B-Class, CLA and C-Class), where, along with direct injection and a turbocharger can provide the fuel economy of a diesel engine from five-eight years ago. If you're interested to see how exactly the Camtronic works, Mercedes-Benz recently released a YouTube video with an animation of the system, which you can check out below.