All our parts were in working condition before removal from wrecked cars. We offer full return if the part is defective. S own mistakes in ordering. Will come with security seal and other prevention so that we will find out if our parts were opened for any reason.If seen, we wont accept the return request. We will send out our package before 4:30pm Monday through Friday. If you order on weekend, your package will be sent out the next Monday morning. The item "2010-2013 Mercedes Benz W221 S550 Dynamic Seat Vacuum Pump A0008005648 OEM" is in sale since Monday, October 14, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Vacuum Pumps". The seller is "cb_europeancarparts" and is located in Baldwin Park, California. This item can be shipped worldwide.