Do not leave the SmartKey in the trunk. You could otherwise lock yourself out.

WARNING
When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the vehicle, even if they are secured in a child restraint system, and do not give them access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. They could:
• injure themselves on vehicle parts
• be seriously or fatally injured by extreme heat or cold
• injure themselves or have an accident with vehicle equipment that may still be in operation even after the SmartKey has been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.
If children open a door, they could cause severe or even fatal injury to other persons; if they get out of the vehicle, they could injure themselves when doing so or be seriously or even fatally injured by any passing 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 a child could be burned on these parts.

WARNING
Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place.
Unsecured or improperly positioned cargo increases a child's risk of injury in the event of
• strong braking maneuvers
• sudden changes of direction
• an accident

WARNING
Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

You can limit the opening angle of the trunk lid. This could be useful, for example, if there is insufficient space above the trunk lid. You can switch the Trunk Opening-height Restriction function on or off via COMAND.

To open the trunk lid completely, a minimum clearance of 5.90 ft (1.80 m) above the ground is necessary.

Vehicles without trunk lid remote closing feature: the trunk lid can be:
• opened and closed manually from outside
• opened automatically from outside
• opened automatically from inside
• locked separately
• unlocked with the mechanical key
• opened with the emergency release button

Vehicles with trunk lid remote closing feature: the trunk lid can be:
• opened and closed manually from outside
• opened and closed automatically from outside
• opened and closed automatically from inside
• locked separately
• unlocked with the mechanical key
• opened with the emergency release button