How to Add a New BMW G-Series X3 BDC2 Key with Autel IM608 II/ IM508S?

If you're working on a BMW G-Series X3 and need to add a key, the Autel IM608 II (or IM508S with XP400Pro) offers a reliable and professional solution. In this guide, we’ll walk you through the key programming process for a BMW equipped with a BDC2 (Body Domain Controller) system using the Autel IMMO Tablet.

 

Tools Needed:

Step-by-Step Guide:

1. On the Autel IM608 II tablet, go to IMMO->BWW->Smart selection, than automatically identify BMW BDC2.

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2. Read Key Information:

  • Select Read Key Info to display current key slots, status, and key type.
  • Confirm which key slots are used and which are available.

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3. Go back to the main menu and Select 'Add Key':

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Follow the on-screen instructions carefully.
Check out diagrams.

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Follow the diagrams to connect XP400Pro to the BDC module or key reader as needed.

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4. Read Immobilizer Data:

  • The tool will extract IMMO data from the original key or ECU.
  • Save the data securely in case it's needed later.

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5. Read Original Key Info:

  • Place the original key in the XP400Pro key slot to read full data.
  • This step helps with cloning or backup if needed.

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6. Use Autel IKEY to generate a remote.

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7. Generate Dealer Key:

  • Once the remote is prepared, select Generate Dealer Key.
  • The tool will write the necessary data onto the new key.
  • This step programs the transponder for starting the vehicle.

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8. Test the new key: check remote lock/unlock and engine start.

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Done!

That’s how to add key for BMW G-Series BDC2 by using Autel IMMO Scanner.

 

Conclusion:

Adding a new key for a BMW G-Series X3 with BDC2 is straightforward with the Autel IM608 II. This powerful diagnostic and key programming tool provides clear instructions, smart system detection, and built-in wiring diagrams to guide you through each step. Whether you're a professional locksmith or advanced DIYer, the IM608 II offers everything you need for modern BMW key programming.

 

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