The precise injection control of the injector reduces incomplete combustion and noise generation during the combustion process. This reduces engine noise and vibration levels, making driving quieter and smoother. Automotive fuel injectors effectively resist fuel wear and provide precise flow and unique spray patterns to achieve optimal performance in any driving conditions. For Benz W203 CL203 S203 C209 W211 S211 R171 906 1.8L A2710780023 2710780023 Car Fuel Injectors 4PC Injector Nozzle. The main function of the fuel injector is to deliver fuel into the engine combustion chamber in the form of spray, so that it mixes with air to form a combustible mixture for the normal operation of the engine. Fuel injector nozzles are made of metal, which is strong and reliable, and improves the accuracy and stability of fuel injection., Manufacturer: APTKCMCNVG