Where is the gas button to open the gas tank on a 2000 C230 BENZ?

On a 2000 Mercedes-Benz C230, the gas tank release button is typically located on the driver's side, near the floor, to the left of the seat. It may be a small lever or button that you pull or press to unlock the fuel door. After activating the release, you can then open the fuel door from the outside. If you have difficulty locating it, consult your owner's manual for detailed instructions.