2003 Mercedes SLK-Class Owner's Manual - Page 186

Operation Maintenance Service term exceeded If you have exceeded the suggested service term: the 9 or ´ appears in the display 2 for 30 seconds and a signal sounds after switching on the ignition. it is preceeded by a "-" (minus symbol) The Mercedes-Benz Center will reset the service indicator following a completed service. Calling up the service indicator Within 1 second press knob 1 ( page 185) twice. The service symbol and the service deadline appear in the display 2. Resetting the service indicator In the event that the service on your vehicle is not carried out by an authorized Mercedes-Benz Center, you can reset the service indicator yourself. Switch ignition on and immediately press knob 1 ( page 185) twice within 1 second. The present status for days or distance is displayed. Within 10 seconds turn key in steering lock to position 0. Press and hold knob 1 while turning key in steering lock to position 2 again. The present status for days and distance is displayed once more. Continue to hold knob 1 until you hear a signal. Release knob 1. The service indicator now displays the reset interval. i If the service indicator was inadvertently reset, have a Mercedes-Benz Center correct it. Only reset if the proper service has been performed. Resetting the system without performing 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 :. 186