CGDI MB tutorial: How to erase Benz ME9.7 ECU

CGDI MB tutorial: How to erase/ reset Benz ME9.7 ECU using it with ECU Connecting Board DME Cable

Step 1: Connect all devices properly

Step 2: Read ME9.7 ECU info

Step 3: Calculate erase password

Step 4: Erase ME9.7 ECU

Check the specific steps as follows.

Step 1: Connect all devices properly

Connect CGDI MB programmer to the computer via the USB cable

Run CGDI MB software

Select Auto Computer-> ECU-> Wiring Diagram-> ME9.7 (steps are similar with EGS and ISM)

Follow the wiring diagram to connect the professional ECU Connecting Board DME Cable with ME9.7 ECU

Then connect to CGDI Prog MB Benz key programmer

Supply power to ECU Connecting Board

Step 2: Read ME9.7 ECU info

In the same “Auto computer” interface, click “Read” to read out the related ECU basic info and key info.

Now the “Personalized” and “Activated” options are marked.

Note: The ECU status, if “personalized” option is not marked, but “Activated” option is marked. The possible reason is that the ECU should have been erased by other tool. It may fail to erase in this status. You need to put it back to car to activate it first, or use other tool to activate it. Then use CGMB to erase.

Step 3: Calculate erase password

Click “Get” to calculate erase password

Step 4: Erase ME9.7 ECU

When the erase password has been calculated successfully, click “Erase”

When it shows ”Erased successfully”, you need to read the ECU status to check if it erase correctly.

If yes, “personalized” and “Activated” options will not be marked.

If not, reboot your CGDI MB tool, do it again

Note: If erase password cannot be calculated successfully, please send your file to CG tech support. They can help you to calculate.

After all steps are completed, put the ME9.7 ECU back to car. Then use Autel or star diagnosis, etc device to synchronize with.

Done!

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