How to read Mercedes W221 S350 Bosch ECU ME9.7 with KTAG?

This blog below will show you the steps how I use KTAG to read ECU ME9.7. Hope it helps users.

 

ktag-ecu-programming-tool-read-w221-s350-ecu-1

 

My car: Mercedes W221 S350

Device i used: KTAG ECU PROGRAMMER

i bought it from obdexpress.co.uk at a nice price €75, i know that its retail price is €130

 

Note: Try this Tutorial AT YOUT OWN RISK!

 

Step1.

Before start reading ECU, i make a backup copy firstly.

First heat the ECU unit edge and open ECU carefully.

ECU inside as picture show:

ktag-ecu-programming-tool-read-w221-s350-ecu-2

 

Step2.

Open KTAG software.

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

ktag-ecu-programming-tool-read-w221-s350-ecu-3

 

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

ktag-ecu-programming-tool-read-w221-s350-ecu-4

 

Step3. Apply solder paste on the red area in ECU as following picture:

ktag-ecu-programming-tool-read-w221-s350-ecu-5 ktag-ecu-programming-tool-read-w221-s350-ecu-6

Solder cable to ECU:

ktag-ecu-programming-tool-read-w221-s350-ecu-7 ktag-ecu-programming-tool-read-w221-s350-ecu-8

 

Step4. Go Back to KATG software and choose plug-in “P102”.

ktag-ecu-programming-tool-read-w221-s350-ecu-9

I clicked “Read” and wait for a while.

Then Save the bin file.

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

ktag-ecu-programming-tool-read-w221-s350-ecu-10 ktag-ecu-programming-tool-read-w221-s350-ecu-11

 

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