You can initiate lock unlock your self, This goes for old type remote should work with new ones to

Code-Learning Procedure:

Preparation
1. Close all doors, trunk, and hood.
2. security system must be in 'disarm' mode w/ key removed from ignition key slot.

Enter Code-learning mode
3. open the trunk and leave it opened
4. open the drivers door and sit in the drivers seat
5. close the drivers door
6. cycle the ignition switch five times between the OFF position and position 2 (ignition ON, all dash warning lamps will illuminate). The red status LED will illuminate continuously, and the siren will 'chirp' once, to indicate that the code-learning mode has been initiated.

Do not start the engine. Ignition cycling in step 6 must be completed within ten (10) seconds. Steps 1-6 must be performed within fourty-five (45) seconds.

Register/Delete ID codes
7. open drivers door (remain seated in drivers seat)
8. close drivers door
9. press and release any button on the remote you wish to register into the system. The status LED will shut off momentarily to indicate that one ID code has been registered.
10. repeat steps 7-9 to register the remaining three ID codes.

It is possible for the system to memorize a total of 4 ID codes. As a new code is initialized into memory, the oldest code in memory is automatically deleted. if you had lost your remotes and wished to delete the lost remote ID codes from memory, you could initialize the ID code from a newly purchased replacement transmitter 4 times thereby deleting the previous ID codes from system memory.

Exit Code-learning Mode
11. open drivers door, exit vehicle, leaving the door opened.
12. close trunk.
13. close drivers door. LED will turn off and siren will 'chirp' twice.
14. process complete, test your remotes.

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X5 4,4i-06 Current
330Ci Cab-03 2007-2008
MB E55 AMG-03 2006-2007
Z3 2,8 Roadster-98 2006-2007
X3 2,0d-05 2005-2006
320d-99 1999-2005