Launch XPROG 3 User Manual: Perform Advanced IMMO& Key Programming with X431 Series Diagnostic Scanners

Launch XPROG 3 is an advanced immobilizer & key programmer that can read/write keys to the vehicle. Compatible with X-431 series diagnostic scanners, X-PROG 3 enables anti-theft type identification, remote control matching, key chip reading & matching, anti-theft password reading and anti-theft component replacement.
launch x-prog 3

Which car models can work with XPROG 3?
VW, AUDI, SKODA, SEAT, BMW, MERCEDES-BENZ, TOYOTA, etc are supported. More models continue to be updated.
Compatible with X-431 series diagnostic scanners, X-PROG 3 enables reading/writing EEPROM, on-board MCU and BMW CAS4+/FEM chips, Mercedes-Benz infrared keys, generating special keys, reading BMW engine INS code.

Which car systems are supported?
Engine system, Automatic Transmission, Instrument System, CAS, Body System, and Lock System, etc

Which X431 series diagnostic scanners are compatible with?
X-431 PRO GT, X-431 PRO V4.0X-431 PRO 3 V4.0, X-431 PRO 5, X-431 PAD III V2.0, X-431 PAD V, and X-431 PAD VII

The advantages of Launch X431 XPROG 3:

It can read & write most Engine/Gearbox ECUs without disassembling the shell.
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 VW/AUDI non-35XX instrument (it can be read directly through independent harness without removing the IC).
4.Supports ECU replacement for the fourth-generation of VW/AUDI engine;
5.Supports ECU replacement for the fifth generation of VW/AUDI Bosch and Siemens engines.
6.Supports the all lost and replacement for the fourth generation of AUDI EZS, comfortable ECU, and KESSY IC.
7.Supports the BMW F and G chassis 8HP gearbox ECU reprogramming to empty.
8.Supports the BMW CAS4/CAS4+ module replacement.
9.Supports the ECU cloning and replacement for BMW Siemens engines.
10.Erase the password for Mercedes-Benz engine and gearbox within 3S.
11.Add the function of calculating the password for the Mercedes-Benz key within 1 minute.

Attach the ECU MCU and EEPROM list supported by X431 Xprog 3.
1.ECU MCU List: (more than 1000 models are supported so far, keep updating)

Atmel NSC
Fujitsu Philips
Infineon Renesas M16
MC68HC05 Renesas M32
MC68HC08 Renesas M32R
MC68HC11 Renesas R32C
MC68HC12 Renesas R8C
MediaTek Renesas V850 SPI
MicroChip Renesas V850 UART
Nordic Samsung


2.EEPROM List: (more than 1000 models are supported so far, keep updating)

4Wire GI Numonyx SST
Adesto GigaDevice OKI ST
AKM Grundig ON Semi Toshiba
Altera HOLTEK Other Winbond
Amic Hynix PCT Xicor
Atmel I2C Philips xUSSR
Catalyst KHIC PMC Spansion
Chingis Macronix Ramtron SPI
Dallas/Maxim MicroChip Rohm NEC
EON Micron Samsung NSC
ESMT MicroWire Seiko Ford
EXEL Mitsubishi Siemens Fujitsu
Fairchild Motorola Sony


Check the comparison between Launch X431G and X431 XPROG 3:

Item Name X-431G X-Prog 3
EEPROM Read and Write ×
MCU Read and Write ×
Mercedes Benz Key ×
Key Simulator ×
VW 4th instrument disassembly/reading/all lost ×
Read Engine via Bench Mode ×
Read Engine via Boot Mode ×
VW 4th All Key Lost without Account ×
Read Gearbox ×
Read and Write Key ×
Read BMW ISN ×
Read CAS4+/FEM Chip ×
Audi 5th generation steering column chip reading and writing ×
OBD reading parts replacement ×


How to use Launch XProg 3?

Watch the video below for reference.

  • Audi A5 Replace Used Transmission TCU Clone by Launch X431 X-Prog 3

Note: After replacing the used transmission, perform a TCU CLONE may help you skip all security, programming and coding steps. It will effectively improve work efficiency and save working time.

X-PROG 3 Key Immobilizer & X-431 scanner will help you to quickly complete the entire operation process with ease.

Kindly notice:
The actual color of Launch XPROG 3 is black not red.

Launch X-PROG 3 Advanced Immobilizer & Key Programmer is on sale now.