We have two Mercedes engine computers. The original one is from 2011 Mercedes C300 and it is messed up.
We have the original one here and a junkyard one here. We bought another one from the junkyard which belongs to another vehicle. We cannot just put on car and program it without knowing OEM software anything like that. It’s been activated by another car and we need to deactivate this module and write the coding files and all the immobilizer information from the original module to the new module ecu.
What we are trying to do is extract the data from this and program it to the new one using Autel IM608/IM608 PRO/IM608 II.
Original ECU
Junkyard donor ECU
The bosch part number is printed right on the bottom of it and it’s a me 9.7 type of ecu.
if you look at this one there’s also a me 9.7 type of ecu but the batch part numbers are slightly different.
This could this can cause a problem even during the programming or if it goes if the programming goes through the car might not start actually or it might start it might not give you any
problems but it’s kind of risky but this is how this process is done if you’re changing a me 9.7 type of ecu on a mercedes-benz this is exactly what you’re supposed to do if your modules are fine
if the part numbers are fine your car should be able to start.
Let’s start.
Renew/Clone/Program Mercedes Used ME9.7 Engine Control Unit with Autel IM608
Main steps:
- Read ori. engine ECU data
- Backup coding
- Renew donor ecu
- Write engine VIN
- Load engine data
- Write engine ecu data
- Write coding
Let’s go to immobilizer->Expert selection->On bench Gbox->ME9.7
Go to wiring diagram. This is the connection diagram if you’re using a g box we have four wires coming out of it ground, power CAN high and can L
We have two power lines at of what is this 15 and 16 and then 41 and 54 is a can high and can low and number two is the ground. We already did this setup.
Also in here this is a db15 a plug that goes onto the gbox and power with 12v external power supply.
This is the obd extension that comes from the jbox of the Autel.
Just be careful check everything over and over again couple of times and then start doing this process.
and then start doing this process. Read engine ECU data and save the file.
you can take a screenshot of the saved data path.
We ju read the engine ecu information and we also want to read the coding of the car.
Then we need to backup coding on bench.
This will back up actually the scn coding.
Our file is saved. Take a screen snapshot of that too. We hit okay, backup coding is done.
Now we’re done with this computer.
Now we hook back up the wires to the donor ECU and start renewing and writing procedure.
I already did the on connections on the donor ecu. just the same exact way as original one.
Now we have the donor ECU computer connected to the autel im608.
First read ecu data to check if we have proper communication with this module.
if you can read whole d flash and p flash which is the data bank you know the eerpom you can just clone it and it will be much easier.
If im608 can communicate ME9.7 module, we are going to renew this ecu.
Autel wants to get erase your password.
It will calculate the erase calculation password.
Let’s go to read engine ecu. What it said was not activated not personalized. The donor ECU is renewed.
Now we can write an engine ecu vin number. Select Write engine (ECU) VIN.
So the first thing you will do is we’ll be writing the vin number to the car.
It will first write the vin number into the ecu before you do anything else.
and then what we could do is we could load the engine ecu information. Upload the ecu data that received from the original ecu.
It is the same exact information still on this one because we already did the deactivation.
Then we write engine ECU data.
It will write the information that we read from that module (all the key information and all the immobilizer information).
Now all we have to do is write the coding the SCN coding with im608, the one we read from the original computer on bench.
It will only be not activated at this moment. Let’s press Activate engine ECU and wait for it to finish.
You only can do this function actually if the car don’t start because of eis problems/ignition switch problems. and then it will just remember the system for you.
But i don’t think we need to do this particular module because I never had to do it at least at the one that I have done before.
Now if you read the engine ecu information, it’s basically going to be almost same exact thing as this one.
If the parts number were the same, if it was the same exact modules, i put this module into car without doing anything the car would have started immediately.
As you can see everything is here. Now it says personal lights personalized, it’s just not activated once you put into the engine, once you plug the engine computer to the can bus network, once it sees the EIS, it starts talking to the EIS. It will activate itself automatically.
Hope it helps.
Read also:
How to Replace and Program Mercedes ME 9.7 ECU with the LOWEST price?
