Mercedes-Benz SLR McLaren. Operator's Manual.

Practical hints
Unlocking in an emergency
Unlocking the vehicle
Unlocking the trunk
If you cannot unlock the trunk with the
SmartKey, open the trunk with the
mechanical key.
The handle is located above the rear
license plate recess.
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Unlocking the trunk with the mechanical
key will trigger the anti-theft alarm
system when the door is opened.
To cancel the alarm, insert the
SmartKey in the starter switch.
1 Mechanical key locking tab
2 Mechanical key
Press locking tab 1 in the direction of
arrow and, at the same time, remove
mechanical key 2 completely out of
the housing.
Trunk lid lock
3 Unlocking
Insert the mechanical key in the trunk
lid lock.
Perform the following two steps simultaneously:
Turn the mechanical key
counterclockwise to the stop, to
position 3.
Pull the trunk lid handle and lift the
trunk lid.