Where is the gas button on a Mercedes s430?

On a Mercedes S430, the gas button, or fuel door release, is typically located on the driver’s side of the vehicle. It is usually a lever or button positioned on the floor near the driver's seat or on the dashboard. To open the fuel door, simply pull the lever or press the button, and the fuel door will pop open. If you're unable to locate it, refer to the owner's manual for specific details.