How to make your Star C3 work as MB SD Connect C4 here introduce you two ways to make your Benz Star C3 Pro (Quality Version) work as MB SD Connect C4.

Benz Star C3

Convert MB Star C3 PartD (C3) to SD connect (C4), download Convert_C3_to_C4 tool.rar, and run it on your MB star c3 Diagnosis software. Then set local-connect IP as: and the wireless IP:

Replace the attached file (cal.sli) in local disk F:/ F:programmeXentrybinllist and make it Read Only after running MB Star C3 Xentry software which has connect with your SD connect C4 Multiplexer, then replace the download Cal sli. (If you are MB Star diagnostic technician, you also can modify the cal. sli by yourself.)

But you have to do following changes to convert the PartD MB Star C3 to SD Connect C4 Mux.

1. Find out F:ProgrammeDASbin folder in Local Disk F:/ and locate Cal.ini file, follow below steps

PartD (C3) Mux:


SD connect (C4) Mux:

PLATFORM=PART_T (or optional _W for Wi-Fi ONLY communication)

2.Find out HHTWin.ini file which located in the windows MAIN folder, and then follow these:

PartD (Star C3) Mux:


SDconnect (C4) Mux:


After that, you need to configure serial port, LAN network or WIFI network (if you using WIFI Benz diagnostic system)


For detail register or configuration setting, please check wobd2 official blog.