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MB Star C4 SD Connect multiplexer HHT-WIN Troubleshoot

MB Star C4 SD Connect multiplexer HHT-WIN Troubleshoot


Mercedes star diagnois Compact 4 is a wifi diagnostic tool for Mercedes. MB Star C4 SD Connect multiplexer with latest 2016.07 xentry can work for Benz vehicle till 2016.07.MB SD Connect Compact C4 with HHT-WIN software is for old Mercedes.Bellow obd2repair.com share you some troubleshoot of Mercedes star diagnois Compact 4 MB SD Connect C4 HHT-WIN software.


MB Star C4 SD Connect multiplexer with 2016.07 Xentry & Vediamo & HHT-WIN



Error 1:
HHT-WIN “Internal fault Diagnosis multiplexer Code:10766”Error





Error 2:
HHT-WIN Fault (1.2) Initialization of diagnosis multiplexer failed.




Analysis from OBD2repair.com Tech Team:

1: HHT error:

2015.12 or newer 2016V Star diagnosis software does not come with HTTWIN software. If you need to troubleshoot old Mercedes, pls go for Star software pre-2015.09V.

2.Multiplexer failed:

We can see from the error screenshot, MB SD connect C4 icon didn’t show on the status bar which indicates you have not set the SD Connect C4 correctly, so the MB SD C4 is not well communicate with vehicle.

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