Mercedes-Benz 2007 SLR Mclaren Operator's Manual page 357

Practical hints
Unlocking in an emergency
Unlocking the driver's door
If you can no longer lock or unlock the
doors using the SmartKey, unlock the
driver's door using the emergency release
catch.
i
Unlocking the driver's door with the emer-
gency release catch will trigger the anti-theft
alarm system.
To cancel the alarm, insert the SmartKey in the
starter switch.
356
The emergency release catch is located on
the left side in the trunk.
1 Emergency release catch
Unlock the trunk ( page 355).
Pull emergency release catch 1.
The door is unlocked.
i
If it still is not possible to unlock the door,
pull more firmly on the emergency release catch.
Open the door in the normal way.
Contact an authorized Mercedes-Benz
Center.