LAUNCH X431 ECU Programmer erase/ reset VGS4-0-NAG2 gearbox

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

The LAUNCH ECU Software has added the erase function for the Mercedes-Benz 4th generation 7-speed gearbox (VGS4-0-NAG2 and VGS4-500-NAG2) in the January 2025 software update (v10.40) . This article will briefly introduce how to operate the gearbox erase function.

 

Function Description:

4th generation 7-speed Mercedes Benz gearbox wiped clean

 

Supported Products:

LAUNCH XPROG3 + PC Adaptor, LAUNCH X431 ECU & TCU Programmer. (Requires software version v10.40)

 

If the original vehicle computer fails, but can still read data normally. In this case, replace the transmission computer and follow the steps below to erase and re-authorize:

1. Enter the ECU model and enter the function menu.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

2. Click [Directly connect to the wiring diagram].

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

3. Follow the on-screen instructions and click OK.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

4.The wiring diagram provides two connection methods: BENCH/ BOOT.

Use BENCH mode to read data from the original gearbox computer. For resetting and personalizing a second-hand gearbox computer, both BENCH and BOOT modes must be connected simultaneously.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

5.After connecting the wires, proceed to read the TCU (Transmission Control Unit) information.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

6.Once the information is successfully retrieved, select [Read EEPROM Data (BENCH)].

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

If the BENCH mode fails, switch to BOOT mode.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

7.After the original vehicle ECU computer data is read, connect the external ECU computer (both BENCH mode and BOOT mode need to be connected at the same time), and then click on erase.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

8.Click on Personalization and select Original Car EEPROM Data Write.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

9.Click OK after successful personalization.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

10.Finally, read the TCU information again to ensure the ECU has been reset. Afterward, install it in the vehicle for programming and coding.

LAUNCH X431 ECU Programmer erase_reset VGS4-0-NAG2 gearbox

 

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