How to use PADFlash ECU & TCU Programmer to read and write Mercedes-Benz CRD3.10 via OBD?
Check the step-by-step guide below.
Operation guide:
Connect PADFlash ECU Programmer and a computer/PC (WIN7 or WIN10 64-bit) via USB cable
Insert the USB KEY that comes with the device into the computer
Ensure you have a stable internet connection
Launch the PADFlash software on your desktop
Select the corresponding ECU model
i.e. MERCEDES>> C KLASSE (From 2000)>> 1.8/2/2 CDI Blue 136/177/204HP Delphi CRD3.x * CAN Fast (TC1797)
Click "Next"

Connect the Padflash correctly to the ECU according to the connection diagram
Click "OK"

Click "ECU Data" to read the data

Click "Read File" to read the file data and save it
Reading terminated, turn the ignition off


Click "Open file" to select the crd3.1 file you want to write

Then click "Write File/Recovery"
It starts writing, wait a while till the process is complete.
After that, turn the ignition off


Done!
Read also:
PADFLASH ECU Programmer User Guide:
http://blog.obdexpress.co.uk/2025/02/17/padflash-ecu-programmer-user-guide/
How to Install and Activate PADFLASH Software on Windows 10 for Use?
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