LAUNCH continues to expand its IMMO and ECU programming lineup with the introduction of the new LAUNCH X-PROG5. Compared with the well-known LAUNCH X-PROG3, the X-PROG5 is designed as a more integrated all-in-one platform for key programming, ECU cloning, and advanced immobilizer operations, especially for European vehicles.
Both devices support professional locksmith and ECU work, but there are several important differences in functionality and coverage.

Quick Comparison
| Function | LAUNCH X-PROG3 | LAUNCH X-PROG5 |
|---|---|---|
| Key Programming | Yes | Yes |
| EEPROM / MCU Read & Write | Yes | Yes |
| ECU Clone | Basic | Advanced |
| TCU Clone | Limited | Yes |
| BMW ISN Reading | Yes | Enhanced |
| Mercedes FBS4 Support | Partial | Advanced |
| MQB All Keys Lost | Limited | Yes |
| Audi MLB Add Key | No | Yes |
| ID46 / ID48 Chip Clone | Yes | Yes |
| PC ECU Clone Software | No | Yes |
| ECU Data Verification | Limited | Yes |
| BMW FEM/BDC Support | Yes | Yes |
| Porsche ECU Clone | Limited | Yes |
| Bench / Boot Operations | Yes | Enhanced |
Main Differences
The X-PROG3 key programmer is already a powerful solution for EEPROM, MCU, IMMO programming, and ECU reading tasks. It supports many BMW, Mercedes, and VW group operations and works well for daily locksmith jobs.
However, the new X-PROG5 goes much further by combining three major systems into one platform:
- IMMO Programmer
- ECU/TCU Clone Device
- Key Programmer
This integrated design reduces the number of separate tools technicians need during diagnostics and programming work.
Stronger European Vehicle Coverage
One of the biggest upgrades on the X-PROG5 is expanded European vehicle support.
For Volkswagen and Audi systems, X-PROG5 adds:
- Audi MLB key adding
- MQB all keys lost
- RH850 / V850 dashboard support
- MQB ELV operations
- BCM2 encrypted data reading

For BMW, it supports:
- CAS1-CAS4+ cloning
- FEM/BDC replacement
- FRM repair
- Gearbox reset and cloning
- G chassis key learning

For Mercedes-Benz:
- FBS3 and FBS4 support
- Gearbox cloning
- DSM / FDCT / VGS module operations
- OBD gearbox cloning without opening the shell

ECU and TCU Cloning Capability
Compared with X-PROG3, the X-PROG5 puts much more focus on ECU and gearbox cloning.
It supports major ECU brands including:
- Bosch
- Continental/Siemens
- Denso
- Delphi
- Marelli
- ZF
- Temic
- Getrag
Coverage exceeds 10,000 vehicle models, including engine and transmission systems.
The X-PROG5 also integrates PC ECU cloning software, allowing users to perform additional ECU read/write and checksum operations directly from a computer.
LAUNCH X-431 PROG5 vs PROG3 Function Comparison Table
| Function Item | X-PROG5 | X-PROG3 |
|---|---|---|
| BMW F Chassis 6HP Gearbox Erase / Clone | Supported | Supported |
| BMW F/G Chassis 8HP Gearbox Clone | Supported | Supported |
| BMW F/G Chassis 8HP Gearbox Erase | Supported | Supported |
| BMW Engine Replacement | Supported | Supported |
| BMW Bosch Engine Clone | Supported | Supported |
| BMW Siemens Engine Clone | Supported | Supported |
| Porsche 2011-2017 Key Matching | Supported | Supported |
| Porsche Front & Rear ECU Clone | Supported | Supported |
| Porsche Engine & Gearbox ECU Clone | Supported | Supported |
| Porsche Battery Repair | Supported | Supported |
| Various Bosch Engine Clone | Supported | Supported |
| Various Siemens Engine Clone | Supported | Supported |
| Various Gearbox Clone | Supported | Supported |
| Various DELCO/DENSO/Marelli Engine Clone | Better Support | Supported |
| Encrypted Chip RH850 Read/Write | Better Support | Supported |
| BMS Chip Read/Write Function | Supported | Not Supported |
| Support ID48/96, ID46 Key Chip Clone | Supported | Not Supported |
| ECU Data Verification Function | Better Support | Supported |
| VW MQB Instrument Cluster / Smart Key Full Support | Supported | Limited Support |
| Mercedes Key Matching (FBS3) | Supported | Supported |
| Mercedes Engine / Gearbox Erase (FBS3) | Supported | Supported |
| Mercedes Engine (FBS4) | Supported | Supported |
| Mercedes Gearbox Clone (FBS4) | Supported | Supported |
| Mercedes W164/W169/W209/W211 All Keys Lost Password Calculation (FBS3) | Supported | Not Supported |
| Mercedes Multiple Lock Head Clone | Supported | Partial Support |
| Mercedes FDCT/VG54 NAG2/VGS NAG3 Clone (FBS4) | Supported | Not Supported |
| Mercedes DSM (FBS4) | Supported | Not Supported |
| Mercedes Add Key with Password Calculation (FBS3) | Supported | Supported |
| Mercedes All Keys Lost Password Calculation (FBS3) | Supported | Supported |
| BMW (CAS1, CAS2, CAS3, CAS4, FEM/BDC) | Supported | Supported |
| BMW G Chassis Key Matching | Supported | Supported |
| BMW Engine ISN Code Reading | Supported | Limited Support |
| BMW E Chassis 8HP Gearbox Erase | Supported | Supported |
| BMW E Chassis 8HP Gearbox Clone | Supported | Supported |
| BMW FRM Repair | Supported | Supported |
Which One Should You Choose
If your work mainly focuses on standard IMMO programming, EEPROM reading, and basic ECU functions, the X-PROG3 still offers excellent value.
But for workshops handling advanced European locksmith work, ECU cloning, gearbox programming, MQB systems, BMW FEM/BDC, and Mercedes FBS4 jobs, the X-PROG5 is clearly the more advanced and future-oriented platform.

