MB Star C3 092015 Xentry cannot work on W204

Mb Star C3 Star diagnostic system failed to work on Mercedes W204? Here is the customer solution. You are at your risk!

Problem:

I have DELL D630 with Xentry 09/2015 and MB Star C3 multiplexer. I have connected many cars (W202, W203, W210, W211, W245, etc) and there is no problem with connection – everything is working like a charm. Some days ago, I have bought W204 C280 from 2007. After I choose model, engine and transmission, and I go to diagnostic I see this:

“The diagnosis application is being started…”

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and few seconds later this:

“Initialization of the multiplexer has failed”

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My Mux is not compatible with W204? I searched few hours without success.

Customer solution:
W204 and X204 is the last Mercedes models which working without some special modifications.
You can try:

First try in toolkit.ini delete line skipcomports=all and set line usecomport=2 then you will see in SDconnect toolkit PartD on display after mux connection.

First save your original file for sure.

Try look into C:\Userdata\Config\Xentry\driver – slave.ini and set there com port which you have used for PartD.

Report:

There was no change because I didn’t restarted system. After restart work perfect.

Your solution work perfectly! Probem solved. Everything is working like a charm.

Obd2tool.com solution:

If you need to deal with newer Mercedes models, better go for MB SD Connect Compact 4 or Mercedes BENZ C5 diagnostic system.

Why MB Star C3 Xentry cannot work on W205 recent Mercedes

User puzzles:

I have installed Xentry 9.2014 in Benz star c3 multiplexer. It works well so far. Now, I need to make diagnosis on mercedes w205 year 12/2014 but It can not communicate with the car. C3 don’t work in all recent cars in xentry but in DAS is ok.

Experienced users’ suggestion:

C3 has many limitation regarding latest vehicles in Xentry.
It can’t diagnose it e.g w205, w212, w222, w906, smart 453 etc.

its glory is already passed unless you deal only with vehicles in DAS.
you have to change to MB SD Connect C4.
C4’s support also officially has been stop since 12-2015.

It is no different even you change folder.
it is different protocol with recent vehicles.

For your w205 (nice car) you can use one of this :
1.sd connect c4
2.MB SD Connect Compact 5

Both good at all new Mercedes Benz models,W222, W221, W212, W203, 211,W 204,W207, W212, GL166, B 246, CLS 218, SLK172 and Smart405, 451, 452, 454

Besides the MB Star diagnosis software c3 and c4 own, sdconnect c4/c5 added three more software: SD Media, Xentry and Smart TAN Code.
SD Media: Video and PDF lessons;
Xentry: New software released by Benz Company after 04/2009 by diagnosis new cars. Xentry software for diagnosing W 204,W207 and W212 which C3 and C4 does not support;
Smart TAN Code: Opened special function in DAS program with Smart cars 405/ 451/452/ 454.Besides, it also opened more special functions, such as engineer mode, remove limitations,etc, which Star C3 and Star C4 do not have.

I have successfully communicated wit my w205 AMG using a MB Star diagnosis SD Connect C4 connect all controllers accessed