The fuel system in your Mercedes-Benz vehicle is made up of several parts, each of which plays an important role in routing gas from the fuel tank to your engine. How the system works is simple. A fuel pump draws gas from the fuel tank and sends it to the fuel injectors that feed the gas into each cylinder to mix with oxygen and create combustion. There's at least one fuel injector in each cylinder, but they work in conjunction with other parts you don't necessarily think of when looking at a diagram of your fuel system.

Take fuel rails, for example. The pump actually directs the fuel to them, and then they supply that fuel to the injectors. A knock sensor is another essential part. Located on the outside of the engine block, it's basically a listening device that detects knocking -- or unexpected explosions inside the cylinder. The sensor perceives the vibration and sends a signal to the engine control unit -- or ECU -- which uses that information to adjust the ignition timing or not.

Genuine OEM Fuel Injector Controls and Parts Are Your Best Option

Nobody other than Mercedes-Benz makes parts that are guaranteed to be compatible with your model. That's why the ideal replacement parts you need are those that were made specifically for your vehicle. Find everything you need right here in our online auto parts inventory, in stock and ready to ship right out. Browse by model and model year to find your parts, then confirm your compatibility by entering your VIN at checkout. Once you're done, you can sit back and wait for your parts to arrive. We ship fast, all across the country, and at affordable prices -- so buy today and rest easy knowing that your order's on its way!