3 / 4 Buttons Smart Remote Car Key Fob 315MHz / 433MHz KEYDIY MB FBS3 BGA Keyless Go for Mercedes Benz W204 W207 W212 W164 W221

Condition: 100% brand newFeatures: remote keyButtons: 3 / 4Blade: uncutBattery: withPCB board: withTransponder Chip: withFitmentfor Mercedes Benz W204 W207 W212 W164 W221Features1. Aftermarket replacement. Frequency 315MHz / 433MHz adjustable. This product link is multi-attribute, please choose the one you need!2. The product includes key housing, circuit board, transponder chip and battery. It's a full remote key.3. You'll need to program the remote key and cut the key blade at the local automotive locksmith before using. KEYDIY replacement for the professional locksmith.Please noted1. Please make sure your original key is the same as the product. If you are not sure, please send your original key's photo to us for confirming, we will help you to choose a suitable one.3. Due to different production batches, there may be slight differences between the product and the display image. But the same functions, please don't worry!Package1 piece ( remote key ) Frequency Switching and ErasurePress and hold the "Lock Car" + "Trunk" buttons simultaneously. Wait for 5 seconds until the light flashes once, indicating entry into the "Lock Button Combination" function.Immediately press the "Trunk" button 3 times to switch the key to 315 frequency;Or press the "Trunk" button 4 times to switch the key to 433 frequency;Or press the "Trunk" button once to erase the key, with status 21 (for VVDI);Or press the "Trunk" button 6 times to erase the key, with status 0000 (for Beast);Then release all buttons. The light will flash after 2 seconds, indicating that the setting is effective.Four-Door SwitchingPress and hold the "Lock Car" + "Unlock Car" buttons simultaneously. Wait for 5 seconds until the light flashes once, indicating entry into the "User Combination Key" function.Immediately press the "Lock Car" button twice to switch between single-door and four-door modes;Then release all buttons. The light will flash after 2 seconds, indicating that the setting is effective.