Engine control unit from a 2007 Mercedes-Benz S600. This was carefully removed from a vehicle that ran well with no check engine light on. The case and connectors have no broken parts. The images are of the actual item you will receive. This item will require on-car programming, coding or flashing during installation in order to work with your vehicle. Please confirm that you or your repair facility can perform this procedure before making your purchase. Fits 2006-2007 Mercedes-Benz CL600, S600 and SL600 with part number 275 150 11 79 ONLY.