How do you reset service indicator message for 2006 Mercedes Benz slk 280 after service A or B is completed?

To reset the service indicator message on a 2006 Mercedes Benz SLK 280 after completing Service A or B, insert the key into the ignition and turn it to the "On" position without starting the engine. Press the gas pedal three times within 10 seconds, then turn the ignition off. When you start the engine again, the service indicator should be reset. If the message persists, repeat the process.