2002 Mercedes ML-Class Owner's Manual - Page 95

Instruments and controls Trip computer Operation Driving Instrument cluster display 92 Practical hints Car care Technical data Index To calibrate the compass: If the vehicle was exposed to a significant magnetic zone, such as high voltage power lines, the compass may have to be calibrated. Calibration of the compass should be done in an area free of steel superstructures and power lines. All electrical consumers (e.g. exterior lamps, climate control, rear window defroster etc.) should be switched off, doors and liftgate closed. Do not open or close the roof. An open liftgate triggers the display 1. Start and run the engine. 2. Press MODE key repeatedly until the compass display appears in the trip computer display. 3. Press RESET key and afterwards press MODE key, "CAL-" appears in the display. 4. Press and hold RESET key for a minimum of 2 seconds, to access the calibration mode. The display shows "CAL". 5. Without interruption drive two full circles at a speed between 3 mph (5 km/h) and 7 mph (10 km/h). The message "CAL" goes out after a short time. 6. The calibration of the compass is now complete. Note: If "CAL" remains in the display, calibration was not successfully completed. To recalibrate, remove key from the steering lock. Insert key, start the vehicle and start the calibration procedure. We recommend that you have the compass calibrated at a Mercedes-Benz Light Truck Center.