Mercedes-Benz GL450 Fuel Filter Replacement Cost Estimate The average cost for a Mercedes-Benz GL450 fuel filter replacement is between $552 and $1,181. Labor costs are estimated between $351 and $444 while parts are priced between $201 and $737.4/5(3) Fuel Filters for Mercedes-Benz GL450 for sale | eBay Get the best deals on Fuel Filters for Mercedes-Benz GL450 when you shop the largest online selection at eBay. Browse your favorite brands affordable prices free shipping on many items. Mercedes-Benz GLS450 Fuel Filter Replacement Cost Fuel filters are more easily replaced with a set of fuel line release tools. These are available from many auto parts stores, or online. They allow the technician, or DIYer to remove the fuel lines without breaking any of the fragile plastic clips. Care should be taken to catch fuel that falls from the filter Mercedes GL450 Fuel Filter Parts Direct to You Our Mercedes GL450 Fuel Filter parts are a fraction of the cost of what they would be at the Mercedes GL450 Fuel Filter parts dealer. Our hassle free 30 day return policy is one of the best in the industry. Our knowledgeable staff is ready to help you find the auto parts you need for your vehicle. AutohausAZ values its customers.