FLIP KEY REMOTE FOR BMW LX8FZV HU92 315 E46, E39, E38, E53, 3,5,7,M3 M5 X5 The key will need to be cut at an automotive locksmith to match your original key. Our locksmith can cut it for $29.95. It is ready to be programmed to the factory system with the 315MHz. Instructions included. It comes with a replaceable SONY CR2032 battery. Finally, you will need to program the Transponder chip (PCF7935) to your EWS module to be able to start the car.This can be done by a professional service center only! Key Cutting and EWS Services offered by United Auto Security at an additional cost. Coupon and information included.