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star diagnosis compact 4
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  1. General Mercedes-Benz
    Q: I have a problem with the connection between the C4 and the cars, cables and notebook are no problem. The defect is in c4, any suggestions on how to solve it? On Xentry, after a blue scroll bar appears on the screen, appears 30 and 31, I change the c4 module for another one, it works again...
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