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Launch X431 GIII X-Prog3

SKU: Launch-Prog3
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$575.00 $699.00
Advanced Immobilizer & Key Programmer For X431 V, X431 V+, X-431 PRO GT, X-431 PRO V4.0, X-431 PRO 3 V4.0, X431 PRO3S+, X-431 PRO 5, X-431 PAD III V2.0, X-431 PAD V, X-431 PAD VII
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  • Launch X431 GIII X-Prog3
  • Launch X431 GIII X-Prog3
  • Launch X431 GIII X-Prog3
  • Launch X431 GIII X-Prog3
  • Launch X431 GIII X-Prog3
  • Launch X431 GIII X-Prog3
  • Description
  • Shipping Information

Launch X431 X-PROG 3 Immobilizer Programmer

Launch X431 GIII X-PROG 3 Immobilizer and Key Programmer Tool is a chip reading device capable of EEPROM reading and writing as well as offers IMMO functionality, key programming, and other advanced features for North America, Asian, and European vehicle. Additionally, the X-PROG 3 is compatible to work with Launch scan tools to perform key and chip programming, such as the X-431 V, X-431 V+, X-431 Pad V, and more models.


1. Compatible with X-431 series diagnostic scanners, X-PROG 3 enables reading/writing EEPROM, on-board MCU and CAS4+/FEM chips, infrared keys, generating special keys, reading BMW engine INS code.
2. Supported systems: Automatic Transmission, Instrument System, CAS, Body System, Lock System, etc.
3. Compatible with: X-431 PRO GT, X-431 PRO V4.0, X-431 PRO 3 V4.0, X-431 PRO 5, X-431 PAD III V2.0, X-431 PAD V, X-431 PAD VII
4. Reads & writes most Engine/Gearbox ECUs without disassembling the shell


1. Supports engine ECU replacement or cloning (Read engine ECU data directly from the key).
2. Supports MQB platform gearbox ECU replacement or cloning.
3. Supports ECU replacement for the fifth-generation of AW/0B5 gearbox.
4. Supports reading, writing & cloning the ECU for the fourth-generation of UDS engine.
5. Supports E chassis 8HP gearbox ECU reprogramming to empty.
6. Works with reprogramming device to backup/restore programming data (For engine ECU).

Core Functions

1. Integrated the functions of key matching/copy, anti-theft IC reading & writing, and ECU reading & writing, etc.
2. Supports common ECU/MCU/EEPROM major manufacturers, with over 1200 product models, and constantly updating.
3. Supports ECU replacement for all lost without disassembly for non-35XX instrument (it can be read directly through independentharness without removing the IC).
4. Supports ECU replacement for the fourth-generation of engine;
5. Supports ECU replacement for the fifth-generation of engine.
6. Supports the all lost and replacement for the fourth generation of EZS, comfortable ECU, and KESSY IC.
7. Supports the F and G chassis 8HP gearbox ECU reprogramming to empty.
8. Supports the CAS4/CAS4+ module replacement.
9. Supports the ECU cloning and replacement for engines.
10. Erase the password for engine and gearbox within 3S.
11. Add the function of calculating the password for the key within 1 minute.

Supported Brands

VW, Audi, Skoda, SEAT, BMW, Mercedes-Benz, Toyota… (updates to be continue)

Supported Systems

Engine system, automatic transmission, instrument system, CAS, body system, lock system…

How to Use X-PROG3 to Read and Write Data?

Method 1: Directly connect to OBD16 for key matching, data reading and writing, etc

Method 2: Place the anti-theft EEPROM or MCU chip in the chip burning socket, and then insert the chip burning socket into the slot of the immobilizer programmer locker and lock it to realize the data interaction between the IC anti-theft chip and the diagnostic host

Method 3: After removing the ECU from the car, connect the anti-theft ECU pin to the DIY slot of the immobilizer programmer through the cable to realize the data interaction between the anti-theft ECU and the diagnostic host.

What's the difference between X-PROG and X-PROG 3?

Item Launch X431 X-PROG


X431 Xprog

Launch X431 X-PROG3


X431 X-prog 3

Read/Write EEPROM No Yes
Read/Write MCU No Yes
Mercedes Benz Keys No Yes
Key simulator No Yes
VW 4th IMMO Dump Mode All Keys Lost No Yes
Read engine in Bench mode No Yes
VW 4th IMMO enumeration all keys lost No Yes
Read gearbox data No Yes
Read and write keys Yes Yes
Read BMW engine ISN code No Yes
Replace OBD reading component Yes Yes
Read & Write BMW CAS4+ and FEM chips No Yes
Read engine in Boot mode No Yes
Read & Write Audi 5th generation steering column chips No Yes
Interface DB15 DB15,DB26
Input Power DC12V DC12V
Working current Max 200mA 500mA
Power consumption 2W 5W
Storage Temperature -20℃-70℃ -20℃-70℃
Working Temperature -10-50 0℃ 0-50℃
Size 142 x72 (mm) 228 x120 (mm)

To sum it up, X-PROG is the first generation X431 key programming adapter and X-PROG3 is the latest generation with extra chip function and more functions shown in the table above.

Free Worldwide Shipping

Where is my order shipped from?

We provide worldwide free shipping! And all orders will be shipped from the warehouse nearest to you and carried by DHL, FedEx, UPS, USPS, DPD, or Royal Mail according your address. Following is the location where our warehouse located at and estimate develiry date for reference.
Your Address Shipping Location Delivery Estimated
United States NJ, US 3-5 Days
Europe Germany 5-7 Days
United Kingdom Leicestershire, UK 5-7 Days
Australia Sydney, AU 7- 10 Days
Other Countries HongKong 7-15 Days

Order Processing Time

All our order are processed and shipped out within 24 hours (excluding weekends and holidays).
After the order is shipped out and received by the carrier, we will update you by email with a Track-and-Trace code with which you can follow your package and see the remaining shipping time.
Please allow 24-48 hours for the tracking information to update.

Shipping Address Change

If you would like to change the shipping address for your order, please contact us by email with the new shipping address. Once the order is shipped, we can not alter the shipping address anymore.
International Shipping Duties & Taxes
- For international order. If the items don't ship from your local warehouse in your country/ region, you, the customer, will be responsible for the import duty, but please don't worry, We will decrease the declared value to reduce your import tax.

Returns, Refunds, and Exchanges

We provide a 15-Day Returns Service after delivery, If you are not satisfied with the item you bought or change your mind, please contact us for a return shipping address and ship all the items back to us for a refund in their original package.
For more details of the return policy, please visit our
Return Policy
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