The MERCEDES-BENZ Flexible Service System (FSS) (Also known as the Active Service System [ASSYST] permits a flexible service schedule which is directly based on your driving style. The next service due is displayed in the multifunction display within the instrument cluster. This display indicates the days or distances remaining to the next suggested maintenance. Once the suggested service due has been exceeded, the wrench symbol, plus the message "EXCEEDED BY" will appear, when the ignition key is in position 2. A detailed list of the applicable maintenance jobs is contained in your Mercedes Service Booklet or the service sheet. Each model has a separate service sheet, which exactly defines the service required for that mileage and/or time limit.
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