2008 Mercedes C-Class Owner's Manual - Page 426

Practical hints Unlocking/locking in an emergency Unlocking the trunk A minimum height clearance of 5.9 ft (1.90 m) is required to open the trunk lid. Turn the mechanical key 2 back and remove it from the trunk lid lock. Locking the vehicle If you cannot lock the vehicle with the SmartKey or KEYLESS-GO* (Canada only), do the following: Close the front passenger door, the rear doors and the trunk. Open the driver's door. Press the central locking switch on the driver's door ( page 81). The locking knobs of the front passenger door and the rear doors move down. If the vehicle battery is disconnected or drained: Press down the locking knobs of the front passenger door and the rear doors manually. Exit the vehicle. Close the driver's door. 1 Locking 2 Mechanical key Use the mechanical key 2 to lock the vehicle from the outside via the driver's door. Turn the mechanical key 2 to position 1. The locking knob of the driver's door moves down. The vehicle is locked. Check whether the doors and the trunk are locked. If necessary, lock the trunk with the mechanical key 2 ( page 272). 1 Unlocking in an emergency 2 Mechanical key Insert the mechanical key 2 into the trunk lid lock until it stops. Turn mechanical key 2 all the way counterclockwise to position 2. The trunk opens. ! The trunk lid swings open upwards automatically. Always make sure there is sufficient overhead clearance. 425