This replacement BMW remote key fob is a complete 3‑button unit with an integrated NXP7953 transponder chip. Operating on 434 MHz, it’s designed for BMW FEM 1/2/3/4 Series models. The durable plastic shell protects the electronics, and the key comes ready for cutting and programming.

Key details

• Integrated transponder chip: NXP7953
• Frequency: 434 MHz
• 3‑button remote for BMW 1/2/3/4 Series (F20 F22 F30 F31) with FEM system
• Durable plastic shell; remote fob and smart‑key features
• Ready for blade cutting and programming

Installation & programming

1. Have the key blade cut to match your vehicle.
2. Program the remote using specialist diagnostic equipment (professional locksmith or BMW dealer).
3. Swap the immobiliser chip from your original key if necessary.
4. Ensure the key shape, frequency and blade type match your original key.

Troubleshooting

• Verify that the NXP7953 chip and 434 MHz frequency match your vehicle.
• If the remote fails to program, check that the blade is cut correctly and that any immobiliser chip has been transferred.

Important notes

• This listing is for one complete remote key with electronics and NXP7953 chip.
• Professional programming and blade cutting are required.
• Not compatible with 315 MHz systems or CAS‑based BMW models.