2007 Mercedes C-Class Owner's Manual - Page 100

Controls in detail Locking and unlocking Valet locking 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. ing mode by means of the mechanical key. Automatic central locking The doors and the trunk automatically lock when the ignition is switched on and the wheels are turning at vehicle speeds of approximately 9 mph (15 km/h) or more. You can open a locked door from the are safe to do so. i To deny any unauthorized person access to the trunk, lock it separately with the mechanical key. Leave only the SmartKey less its mechanical key with the vehicle. The lock is located next to the handle above the rear license plate recess. i You can only cancel the separate trunk lock- inside. Open door only when conditions Insert the mechanical key in the trunk lid lock. 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 ( page 96). i The doors unlock automatically after an accident if the force of the impact exceeds a preset threshold. To prevent the vehicle door locks from locking, deactivate the automatic central locking when the vehicle is pushed or towed is on a test stand 1 Neutral position 2 Locked Close the trunk ( page 97). Pull the mechanical key out of the SmartKey ( page 361). Insert the mechanical key in the trunk lid lock. You can deactivate the automatic locking mode using the control system, see "Setting automatic locking" ( page 143). 99