How do you reset the service light on Mercedes c18 compressor?

To reset the service light on a Mercedes C-Class (C180 Kompressor), turn the ignition key to position "2" without starting the engine. Press the gas pedal three times within 10 seconds, then turn the ignition off. Restart the engine, and the service light should be reset. If this method doesn’t work, consult your owner's manual for specific instructions related to your model year.