2010 Mercedes S-Class Owner's Manual - Page 285

Locking and unlocking X X 283 X Briefly press emergency release button :. The emergency release button unlocks and opens the trunk while the vehicle is standing still or in motion. Illumination of the emergency release button: RThe RThe button flashes for 30 minutes after opening the trunk. button flashes for 60 minutes after closing the trunk. Valet locking: Close the trunk. Remove the mechanical key from the SmartKey (Y page 499). X Insert the mechanical key in the trunk lid lock. X Turn the mechanical key clockwise to position 2 and remove the mechanical key in that position to lock the trunk. The trunk remains locked even when the vehicle is centrally unlocked. You can then only open the trunk with the mechanical key. X Canceling: Insert the mechanical key in the trunk lid lock. X Turn the mechanical key counterclockwise to neutral position 1 and remove the mechanical key in that position to unlock the trunk. You can now open the trunk. The emergency release button does not open the trunk, if the vehicle battery is discharged or disconnected. Power closing assist for doors and trunk lid It is not necessary to slam the door or trunk lid closed. An electrical power-assisted mechanism draws doors and trunk lid closed quietly and automatically once door and trunk lid has been latched. When the electrical power-assisted mechanism has stopped, doors and/or trunk can be reopened. Valet locking You can lock the trunk separately with the mechanical key. This denies unauthorized access to the trunk, e.g. when you valet park the vehicle. X Leave only the SmartKey less its mechanical key with the vehicle. G Warning! To prevent possible personal injury, always keep hands and fingers away from the door or trunk opening when closing a door or the trunk lid. Be especially careful when small children are around. In case of danger, pull the inside or outside door handle, or pull the trunk lid handle. To prevent personal injury, never actuate the closing assist mechanism by tampering with the door or trunk lid latch. Z Controls in detail