UGVW / Audi · BMW
Maps you can
actually read.
Calibration tools built one platform at a time by someone who reverse-engineered the binaries. Full suites for Bosch ME7 on VW and Audi — edit, checksum, flash and log from one app. Calibration editors for BMW DMEs and the ZF 8HP gearbox.
Windows 10 / 11 · Buy the platform once, tune as many cars as you like · Nothing phones home
Pick your
platform
Every address in a build is tied to one software version, so each platform gets its own build rather than one binary that guesses. Engine and gearbox, VW / Audi and BMW.
VW / Audi — full suite: edit, checksum, flash, log
BMW — calibration editors
What every
build does
Every platform gets the same editor. The ME7 suites for VW and Audi add the cable side on top of it.
Editor — every platform
Maps you can read
Named, scaled and grouped by what they do, not listed by address. Heat-shaded grids with a pop-out 3D surface on the same colour ramp, and a warning before you edit an axis six other maps share.
Editor — every platform
Definitions checked against the file
Nothing ships until it has been read back out of a factory image of its own software version — in bounds, right dimensions, axes sane. Read every map and write it back and the file comes out byte-identical, which is the only way to know the tool understands what it is showing you.
Editor — every platform
Compare two files
Diff a file against another one through the definitions rather than at byte level: which named maps moved, how many cells, and by how much. How you read a tune you were handed, or check your own work before it goes on the car.
ME7 suites only — VW / Audi
Read and write over OBD
Any J2534 cable that does K-line. Checksums corrected before the write, then verified. Dry run, recovery mode, and a debug console that tells you what actually happened.
ME7 suites only — VW / Audi
Live data, same cable
Reads existing ME7Logger definitions, picks up your channels and rate, and writes CSV that opens in any log viewer — German channel descriptions translated to English on the way out. Live values and a pop-out graph while you drive.
The BMW builds are editors. They open a calibration file, let you change it and save it again — they do not touch the car. Pull the file off the ECU and flash it back with whatever tool you already use for that; checksums and logging on the BMW side stay with that tool, and these builds do not pretend otherwise.
Cables
it works with
For the VW / Audi ME7 suites. Any J2534 pass-through that can do ISO9141 / KWP2000 on K-line — the tool drives the cable through its own PassThru DLL, so if the manufacturer ships a working driver it will work. The BMW editors need no cable at all.
Any J2534 pass-through
It has to speak ISO9141 / ISO14230 on K-line. Tactrix OpenPort 2.0 and Topdon ArtiDiag both work. Installed cables are found in the registry and listed — pick yours, or hit Refresh if you plug one in afterwards.
Use the 32-bit driver
The tool is a 32-bit build, so it needs the 32-bit PassThru DLL. The device picker flags a 64-bit mismatch up front rather than failing halfway through a session.
Not supported
Dumb FTDI or KKL 409.1 cables, Prolific clones, and anything CAN-only. There is no raw-serial path — the ECU needs a K-line handshake these cannot do.
Read this before you flash
Flashing applies to the VW / Audi ME7 suites. The BMW builds never touch the car — they only open and save files.
- Save a full read of your stock file and keep a copy somewhere other than the tuning laptop. It is the only way back.
- Put a charger on the battery. Voltage sag mid-write is the most common way this goes wrong.
- Close everything else, turn off sleep, and do not unplug the cable while a write is running.
- If a write does get interrupted, the ECU needs boot-mode recovery on the bench. This tool does not do boot mode — that is a separate job with a separate rig.
- Sold for off-road and competition use. What you do with it on a road car is on you.
New to ME7? Read the S4wiki tuning guide before you change anything. This tool gives you the maps; it will not tell you what to put in them.
