The 2008 Mercedes R171 SLK280 ECU Engine Control Unit A2721535591 OEM is a genuine part made by Mercedes-Benz in Germany. This Engine Control Unit (ECU) requires programming and has a 30-day manufacturer warranty. It comes with a female connector type and pin terminals, suitable for easy installation. This ECU is designed for specific Mercedes models and years, providing reliable control for optimal engine performance. With a vintage part indicator of "No" and a performance part indicator of "No," this OEM part is a dependable choice for maintaining your Mercedes vehicle.