How to Lower Your mercedes keys replacement Spare Key Cost If you own a mercedes key programing car, you're probably familiar with the cost of replacing keys that are not in use. There are, however, some ways to cut down on the cost of replacements. The first option is to purchase an entirely new key from the dealership. This can take some time and can be costly. The Dealership The dealership is a place where mercedes key repair-Benz customers are able to purchase new automobiles. They can also purchase parts and accessories for their cars or sell their vehicles at the lowest price. They need a big showroom in order to sell their cars and they need to provide services like financing and warranties. Dealers offer cash back to customers, and special discounts for seniors and military personnel and they also sell cars. They must also market in their local areas so that they can attract customers. Dealers also need to pay for salespeople as well as other employees to generate sales.