The Mercedes-Benz Genuine Exhaust Gas Flap Controller 4 Cylinder Diesel A2139069210 is an OEM electric controller designed specifically for Mercedes-Benz vehicles. With dimensions of 11cm (W) x 11cm (L) x 9cm (H) and a weight of 290g, this controller is easy to install and is a genuine OE part, ensuring quality and performance. It is tailored for diesel vehicles and is placed on the exhaust system, providing a precise fit and optimal functionality for a seamless driving experience.