This vacuum pump is a genuine OEM part for Mercedes-Benz vehicles, specifically for W211 E55 AMG, E320, E500, CLS500, and W219 CLS55 AMG. It is designed to be installed in the luggage compartment and comes with the necessary items for installation. The part numbers for this vacuum pump are A2118000148, A0008002748, A0008004248, and A0008003148. This vacuum pump is a great replacement part for your Mercedes-Benz vehicle. It is a high-quality OEM part and is an essential component of your vehicle's air and fuel delivery system. Don't miss out on the opportunity to upgrade your vehicle with this genuine Mercedes-Benz vacuum pump.