Hi, I checked with the BMW parts deparment to be sure. A new key is $200, this is the one with the built in remote. They have to be ordered through the dealer using your license and registration as proof of ownership.
Also need the VIN number.
They will cut the key, and it will be programmed to start your vehicle.
It will need to be initialized to work with the remotes.
Here is the procedure:
In order for the key transmitter to communicate with the vehicle, each individual key transmitter must be initialized with the receiver module. Up to four radio transmitters can be initialized and used per vehicle.Since each key transmitter has its own key code, all existing radio transmitters must be reinitialized when, for example, a new key transmitter is to be added.Initialization procedure:1. Open the central locking system (ZV) using the car key.2. Get into the car and close all the doors.3. Using the car key, switch the ignition briefly to ignition lock position 1 and then switch off again. The switching time must remain under 5 seconds, otherwise the system is not ready for initialization.4. On the key transmitter: Press button 2 and hold in.5. Press button 1 three times (within 10 seconds). Button 2 must remain held in.6. Release button 2.7. The central locking system confirms a successful initialization by "locking" and immediately "unlocking" the doors automatically. If the doors do not "lock and unlock" automatically, initialization must be restarted.
BMW Technician
3 years dealer experience, master bmw tech