9.16.2016

SD Connect C4 cannot access some modules solution

I have a MB star diagnostic system with SD Connect C4 multiplexer. It worked without problem at the beginning. A friend borrowed it and now it behaves funny. It scans w204 well but for w203 it scans ezs and gateway only. It scans w164 to the fullest but only ezs on w163. What could be wrong?


Problem in detail:
I have a problem with my star diagnosis when I work on w203s. In the first picture this is what I get when I do a scan. It doesn’t scan the engine, transmission, bas. On the second and third pictures I wanted to code the fuel tank type on the instrument cluster and this are the messages I get and coding cannot be done.
mb-star-cannot-access-modules-1
mb-star-cannot-access-modules-2
Communication error 2.565.0
mb-star-cannot-access-modules-3
mb-star-cannot-access-modules-4
I using MB SD C4 MUX with 2014.12V Xentry software version.
I have had it for 3 years now.
mb-star-cannot-access-modules-5
SD C4 firmware version photo taken when i connect it to vehicle and press “i” button for 3 times
mb-star-cannot-access-modules-6
I have tried on other Mercedes cars, w163, w170 and the result is the same. It used to work before but after someone borrowed it, that is when I started experiencing this problem. I ran self test but I don’t know what to expect from the result.


Mbstartool.com engineer solution:
You have your Star tool for 3 years. The Xentry software is very old version. But your MB SD C4 main unit shows firmware version OS:2.3/CSD:2.10, the firmware version is new to 2015.  So your machine default firmware version won’t be this new. Contact your friend who borrowed your machine to ask if he tried to update/flash your SD C4.If yes, your software will not work with current C4 firmware.

If your friend had the same problem as you now when borrow your device. You properly should send back the unit for repair.
Note: Do try to use new 2015V 2016V Xentry software on this C4, they are not compatible with the firmware.


How to check if your current software is compatible with your C4 firmware or not.
check-firmware-version

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