2011 Mercedes R-Class Owner's Manual - Page 82

80 Doors Problem The engine cannot be started using the SmartKey. Possible causes/consequences and M Solutions The on-board voltage is too low. X Switch off non-essential consumers, e.g. seat heating or interior lighting, and try to start the engine again. If this does not work: X Check the starter battery and charge it if necessary (Y page 308). or X Jump-start the vehicle (Y page 311). or X Consult a qualified specialist workshop. The engine cannot be A door is open. Therefore, the SmartKey cannot be detected as started using KEYLESS- easily. GO. The SmartKey is in X Close the door and try to start the vehicle again. the vehicle. There is interference from a powerful source of radio waves. X Start your vehicle with the SmartKey in the ignition lock. Opening and closing Doors Important safety guidelines G Warning! When leaving the vehicle, always remove the SmartKey from the starter switch. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could Rinjure Rbe If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned by these parts. G Warning! themselves on parts of the vehicle seriously or fatally injured through excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with vehicle equipment that can be operated even if the SmartKey is removed from the starter switch or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function Do not carry heavy or hard objects in the passenger compartment or cargo compartment unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child's risk of injury in the event of Rstrong braking maneuvers changes of direction Ran accident Rsudden