SCN coding is also required to prevent any aftermarket enhancements that are done to improve the performance. If you want to install additional control module in the future, it will require SCN coding.Here I want to share how to use Xentry perform SCN Coding for Benz S221.Hope it helps!
Preparations:
Newest Mercedes-Benz Xentry.OpenShell.XDOS 06.2023 Free Download
How to Install Benz Xentry 2023.06 Diagnostic Software
Xentry OpenShell Patcher Edition v3.3 Download for Win 7/8/10
Procedures:
Connect MB SD device between laptop and the vehicle.
Launch Xentry software
Automatic vehicle determination
Then it will prompt with below warning massage
“Information on preventing damage to electronic components due to electrostatic discharge:
The safety information and descriptions listed in Help(F6) MUST be observed….
General test conditions:
….”
Click “F2” to continue
Data being determined,please wait…
Click “F2” to continue
Data being determined,please wait…
Please wait,DAS is initializing communication layer.
It will show you with massage
Important:increased power requirement with ignition ON.
IMPORTANT NOTE:
Ensure power supply during the diagnosis session
The battery must not have undervoltage when the vehicle is handed over to the customer
If necessary,recharge the battery beforehand.
……
Click “F2” to continue
Data are being determined,please wait…
Communication with control unit AAC is being established.
Select “Quick test” and click “F3” to continue
Data are being determined,please wait…
Communication in progress
Select “M9.7-Motor electronics 9.7”
Select “I herewith confirm that I have read the safety notes”
Then click “F3” to continue
Communication with control unit ME9.7 is being established
Data are being determined,please wait…
Select “Control unit adaptations”
Select “Variant coding”
Communication with control unit ME9.7 is being established
Data are being determined,please wait…
Select “SCN Coding” and click “F3” to continue
Data are being determined,please wait…
Loading the data record,please wait…
User data are checked.
It will prompt you with below massage,click “F3” to continue
Here you need to input your Mercedes Benz online account for SCN coding
Verification of access authorization to establish an Internet connection
Data being determined,please wait…
SCN coding data are being requested from headquarters,please wait…
Communication with control unit ME9.7 is being established
The coding is being carried out,please wait
Follow Xentry software operation to switch off ignition
Wait…
Switch on ignition
Control module reset,please wait…
Data are being determined,please wait…
Then it will show the information of Documentation for repair order+”VIN”
The SCN coding sequence has been completed successfully
….
Done!
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