Fuse box Mercedes w203 - fusesdiagram Fuse box in passenger compartment Mercedes w203. fuse box location. The main fuse box is located in the passenger compartment on the driver’s side of the cockpit. 2008 Mercedes S550 Fuse Box 230 Type SL65 Passenger Side For sale: 2008 Mercedes S550 Fuse Box (Options: 230 Type SL65 Passenger Side). Make sure to select the applicable option(s) of your vehicle. We carry 0 items in stock with the selected specification. Our Fuse Box comes with 1-year warranty, FREE shipping and 30-day money back guarantee. 0 items in stock and available for immediate shipping!