How do you reset the service indicator on Mercedes C200?

To reset the service indicator on a Mercedes C200, first, turn the ignition to the "On" position without starting the engine. Then, press the gas pedal three times within 10 seconds. After that, turn off the ignition and start the engine to ensure the service indicator has been reset. If this method does not work, consult the vehicle's owner manual for specific instructions related to your model year.