2003 Mercedes ML-Class Owner's Manual - Page 216
2003 Mercedes ML-Class Manual
Page 216 highlights
Operation Maintenance The Mercedes-Benz Light Truck Center will reset the service indicator following a completed service. Calling up the service indicator Within 1 second press knob 1 twice. The FSS display will appear for ten seconds. Resetting the service indicator In the event that the service on your vehicle is not carried out by an authorized Mercedes-Benz Light Truck Center, you can reset the service indicator yourself. Switch ignition on and immediately press knob 1 twice within one second. The present status for days or distance is displayed. Within ten seconds turn the key in steering lock to position 0 ( page 33). Press and hold knob 1 while switching the ignition on. The present status for days or distance is displayed once more. Continue to hold knob 1. After approximately 10 seconds a signal sounds, and the display shows 10 000 miles (Canada: 15 000 km) for approximately 10 seconds. Release knob 1. i If the service indicator was inadvertently reset, have a Mercedes-Benz Light Truck Center correct it. Only reset if the proper service has been performed. Resetting the system without performing the proper service as called for by the FSS will cause the FSS to incorrectly determine the next service interval which will result in engine damage not covered by the Mercedes-Benz Limited Warranty. If the battery is disconnected, the days of disconnection will not be included in the count shown by the service indicator. To arrive at the true service deadline, you will need to subtract these days from the days shown in the service indicator. Do not confuse the service indicator with the engine oil level indicator :. 216