2004 BMW 320

Here is the Ketfob initialization steps if that's what you mean.

1. Close all doors and have all keys available.
2. Using key number 1, turn the ignition switch to KL R, then switch off within 5 secs and remove the first key.
3. Within 30 secs. Of turning off the ignition switch to off, press and hold the arrow button.
4. While holding the arrow buton, press and release(tap) the roundel button (lock) three times within 10 secs.
5. Release both buttons. The GM(module) wwill immeadiately lock and unlock the doors signaling a successful initialization.
6. If additional keys need to be initialized repeat steps 3-5 within 30 secs of each other.

Hope that helps!