2007 Mercedes GL-Class Owner's Manual - Page 183

Controls in detail Control system Press button j or k repeatedly until the message Compass setting Zone appears in the multifunction display. The selection marker is on the current setting. Compass calibration Press button j or k repeatedly until the message Compass Calibration appears in the multifunction display. The selection marker is on setting switched off. i Make sure you are in area where you can drive a full circle with your vehicle without disturbing traffic in order to calibrate the compass. This function is not available if your vehicle is equipped with the COMAND system and navigation module*. In order to calibrate the compass properly, mind the following: Calibrate the compass in open terrain. Nearby buildings, bridges, power lines and large antenna masts, for example, could impair compass calibration. Switch off electrical consumers (e.g. climate control, windshield wipers, or rear window defroster). Close all doors and the tailgate. Start the engine ( page 57). Press button æ or ç to move the selection marker to the Vehicle submenu. Press button æ or ç to set the respective compass zone. For information on how to call up the compass, see "Compass" ( page 345). Press button æ to set the selection marker to Start. The following message appears in the multifunction display: Compass Calibration active Please drive in a full circle 182