We’re proud to announce significant enhancements to our BMW G-Chassis BDC2 key programming support. Now this powerful functionality is available across more X431 tools than ever before!
Supported Product Lines:
✅ X431 IMMO Series (IMMO Plus/Elite/PAD/Pro) – Existing support
✅ NEW: X431 PAD Series (Including PAD9 LINK, PAD7, PAD5 models…)
Requirements:
X-Prog3 & MCU3 Adapter (required for all devices).
No need license!
This expansion means more flexibility and choice for automotive professionals working with BMW vehicles. Whether you’re using our specialized IMMO series or our versatile PAD devices, you now have access to comprehensive BMW key programming capabilities.
How to add key to BMW BDC2 module?
1.by Launch X431 PAD series (e.g X431 PAD9 LINK)
Preparation:
- X431 PAD series tablet
- X431 X-Prog3
- X431 MCU3 Adapter
- BMW G series BDC2 module
Step 1: Connection
Connect X-Prog3 in bench mode and use Launch MCU3 Adapter
Step 2: Back up coding data
Select BMW-> Main functions-> Anti-theft matching-> BDC02 IMMO-> Encoding Operation-> Backup codes
Step 3: Preprocessing
Remove the BDC2 module shell
Select BMW-> Main functions-> Anti-theft matching-> BDC02 IMMO-> Programming Operation-> Read-out Preprocessing
Follow the on-screen instruction to connect device and BDC2 module correctly
- Connect EEPROM Pin2, and then check whether Pin2 and Pin3 are short-circuited. Ensure that there is no short circuit before proceeding. Otherwise, the ECU will be damaged.
- Connect MCU Reset at the BDC back side. Be sure to distinguish it from EEPROM Pin2, and then put on the ECU shell
- Connect to the ECU according to the wiring diagram. Use the USB for connection to improve the communication stability
Measure continuity between PIN1 to PIN2 and PIN2 to PIN3 as if there any connection due to soldering, please remove it
Connect power supply to MCU3, then connect MCU reset to X-Prog3 at B8
After connection, start to read the anti-theft data and upgrade ECU
Processing is successful
Restore coding data for the BDC
Step 4: Read original vehicle key
Select Key operation-> Read original vehicle key
Put the working key into the coil of X431 X-prog3
Read data successfully
Step 5: Program new key
Select “Generate dealer key”
Select one unused key position
Put the new key to be learned into the X-431 X-Prog3 key programmer
Wait a while until the learning process is done!
2.by Launch X431 IMMO series tablet