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TCU Flash Instructions – Audi C7/D4 DL501

This is the main login screen where you will enter your user name and password from the email.

At the top left corner select “TMS” and click “Identify”

If you recieve the error “Unable to init device” make sure the USB cable is plugged into the dongle and the computer. Also the correct driver needs to be installed and the device should show up in “Device Manager”

In some cases the dongle may need a firmware update, it will be installed automatically before continuing.

After you click identify, the controller information will show up on the screen. There may be some warnings in red or yellow, this is normal and not a problem. If there are files in the drop down box at top right, then you can select which tune to flash on your transmission. If there are no files, take a screenshot of this screen and reply to the username/password email with the image.

Which file do I flash?
The default tune will be named as follows: DL501_SoftwareBoxCode_SoftwareVersion_6800_3000
This tune will work with DS1 OTS Tunes as well as most other companies OTS Tunes. Shift Points are at 6800 RPM and Launch Control is at 3000 RPM
If there are other files available for your box code, you should only flash them if you have a custom tune accommodating higher shift points or other variants.
If in doubt, email us and ask, or only flash the default tune. There is also a stock file if you wish to return to stock.

After selecting the desired tune file, click “Flash” and wait until the process is complete. The green progress bar should increase from left to right. There may be yellow or red warnings, and this is not a problem. Do not disturb the car, dongle, laptop or USB cable during this process.

At the end of a successful flash you will see “Controller successfully programmed” at the bottom of the text. If any other error shows please contact support.

Clutch Adaptations

Clutch adaptations will give the TCU the best chance at perfect clutch engagement and pressure and needs to be performed each time after flashing the TCU. The values stored in the TCU are erased during a flash. If you are running stock S6/S7 turbos then the clutch adaptations are optional. If you have RS7/S8 turbos or larger, then the adaptations are mandatory. You will need a VCDS cable and software which can be purchased from Ross-Tech here: https://store.ross-tech.com/shop/vchv2_ent/

Start with the hood closed, doors closed, engine running, transmission in park, and foot firmly on brake for the entire procedure.

In the VCDS main screen click “Select”

Click “02 – Auto Trans”

Click “Adv. Meas. Values”

Search “temp” and select “ATF Temperature”. The temperature must be between 60-80 deg C before beginning the adaptations. If it is too hot or too cold it will not work. If it is too cold, let it warm up, or drive the car around the block until it is warm enough. If it is too hot, turn off the car and try later after cooling down.

Go back to the main screen and click “Basic Settings – 04”

This is the drop down box of the adaptations. We will be doing IDE02294, IDE02295, and IDE02298 in order.

Select “IDE02294 – Main pressure valve calibration” and click “Start”. After you see “Finished correctly” then click “Stop”

Select “IDE02295 – Calibration of clutch valves” and click “Start”. After you see “Finished correctly” then click “Stop”

Select “IDE02298 – Adaptation of clutch kiss points” and click “Start”. After you see “Finished correctly” then click “Stop”

The adaptations are now complete. Turn the engine off and re-start it and check/clear codes.