Mercedes-Benz VGSNAG2 (7G-Tronic) TCU Flashing by DTS Monaco

Today we’re going to flash a VGS/NAG2 board inside Benz W221 gearbox by VXDIAG VCX SE and DTS Monaco.

Here we connect it to PC by VXDIAG VCX SE. (A good alternative that has a built-in DOIP: MB SD C4 Plus/Super MB Pro M6)
Besides, don’t forget gearbox 7-G renew cable and 12V power supply.

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We run DTS Monaco, because DAS will ask for a password(have to calculate the password when the board turns to ECU mode through DAS).
On Temporary workspace, open up CBF file.
Rectangle Font Screenshot Automotive tire Operating system

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Now we’re going to unlock the board on Flash Programming.
Select CFF file.

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Check software we need for the car, click on “Prepare Flash Programming” and “Run”.
This step takes about 10-15 minutes.

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After it’s completed, click on “End Flash Programming”.
Go to “Diagnostic Services” to check firmware.

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Now go to “Variant Coding” to encode the board.
Connect ECU and select domain.
Here we’ve already written the coding.

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Disconnect ECU and exit.

Done!

So, as you can see, we’ve flashed Benz W221 gearbox through DTS Monaco without any block or password required.

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