Vehicle:locking/unlocking in an emergency, Locking the vehicle, Door – Mercedes-Benz 2006 C-Class User Manual
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Practical hints
Unlocking/locking in an emergency
Unlocking and opening the trunk
A minimum height clearance of 5.71 ft 
(1.74 m) is required to open the trunk lid.
The trunk lid lock is located next to the 
handle above the rear license plate recess.
1 Unlocking in an emergency
2 Handle
̈
Insert the mechanical key into the 
trunk lid lock until it stops.
̈
Turn the mechanical key 
counterclockwise to position
1.
The trunk lid unlocks.
̈
Pull on handle
2.
The trunk opens.
̈
Turn the mechanical key back and 
remove it from the trunk lid lock. 
Locking the vehicle
If you can not lock the vehicle with the 
SmartKey, do the following:
̈
Close the passenger door, the rear 
doors and the trunk.
̈
Press the central locking switch in the 
center console (
̈
Check to see whether the locking 
knobs on the doors have moved down.
̈
If necessary push them down manually.
̈
Remove the mechanical key out of the 
SmartKey (
̈
Check whether the trunk is locked.
̈
If necessary, lock the trunk with the 
mechanical key (
Except for the driver’s door, the vehicle 
should now be locked.
!
The trunk lid swings open upwards 
automatically. Always make sure there 
is sufficient overhead clearance.