BMW G/U FGB Key Adding with KD-MAX & BDC03 Clip

Using the Keydiy KD-MAX with the BDC03 specific dismantling-free clip makes BMW G/U chassis key programming much more convenient and efficient. This guide walks you through the complete process of adding an FGB key to a BMW BDC3 module.

Required Tools:

Keydiy KD-MAX

BDC03 Specific Dismantling-Free Clip

Cable Series – Specific Cable for BDC03 Clip

KD FGB57 PCB Board

Original Key

Step 1: Prepare the BDC03 Clip

Remove the BDC03 dismantling-free clip from the package.

Turn on the four switches on the clip.

Note the four wire definitions and connect the wires in sequence.

Step 2: Connect to the Original Key

Remove the back cover of the original BMW key.

Attach the BDC03 dismantling-free clip to the back of the key.

Connect the Cable Series BDC03-specific cable to KD-MAX, then plug it into the KD-MAX device.

Step 3: Read the Chip Data with KD-MAX

On the KD-MAX, select [Remote Function].

Scroll down and choose [Smart Key Clone].

Select [BMW BDC03/BCP Smart Key Clone] → [G Chassis/BDC3 Clone].

Tap [Read Chip Data], then confirm with OK.

Wait for the data to be read.

Once complete, save the file when prompted.

Step 4: Generate the New FGB Key

Place the FGB57 PCB in the KD-MAX induction area.

Select [KD-FGB Type] → [KD-FGB Remote].

Generate the key—once successful, you can install the PCB into the key shell and use it normally.

For a full demonstration, watch the video tutorial:

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