Where is the fuel door release on a Mercedes 560 sec?

On a Mercedes 560 SEC, the fuel door release is typically located on the driver's side of the vehicle. It can be found on the floor near the left side of the driver's seat, often as a small lever or button. Pulling or pressing this release will unlock the fuel door for refueling. If you're having trouble locating it, consult the owner's manual for specific details.