Where is the gas door switch located in a 2006 Mercedes C230?

The gas door release switch in a 2006 Mercedes-Benz C230 is typically located on the driver's side, near the driver's knee, on the lower part of the dashboard. It's often a small, unassuming button. It might be somewhat recessed or hidden, so you might need to feel around a bit to find it. Look for a small symbol that resembles a fuel pump or gas nozzle.