How to Use KTAG to Read/Write for Benz ME9.7 ECU

This article UOBD2 will show you a step-by-step guide on how to use KAG to read/write Mercedes Benz ME9.7.And try this procedures at your own risk!

Vehicle Information: Mercedes W221 S350

Device: KTAG ECU PROGRAMMER

Step1:

Remove the ME9.7 ECU from vehicle,and open the ECU shell carefully.(for ECU shell removal,you can check this article:How to open EDC16 / EDC17 / MED17 )

ECU PCB show as picture show:

Step 2:

Connect then cable 14P600KT02 to the connector of ECU.

Refer to below pin out diagram:

Red color: Pin 15, 16: +12V

Black: Pin 2: GND

Apply solder paste on the red area in ECU as following picture:

Solder cable to ECU:

Note:Here i you want to make the procedures simplify,you can choose ME9.7 ECU Renew Cable.No need to disassemble the ECU and soldering cable connectors.It can reduce operational risk of ECU damaged.

Step3:

Open KTAG software.

Then I Choose “Mercedes” “S (W221)” and “S350 3500 V6…BOSCH ME9.7”.

Choose plug-in “P102”.

I clicked “Read” and wait for a while.

Then Save the bin file.

Finally, i successfully used K-TAG ecu chip tuning tool to read Mercedes W221 ME9.7 ECU !

Then write procedures is same as reading procedures.And before you write a new ECU data file back into ECU,you would better make a backup.