I’ve got a -95 W124 and would like to connect my MB Star Diagnostic Tools SD Connect4 to it. But I do not know how to connect the wires from the SDconnect c4 mux?

New MB Compact 4 feature:

1. New MB SD Connect Compact 4 Star Diagnosis support wireless diagnose;
2. New MB SD Connect Compact 4 Star Diagnosis not only support K line diagnose and CAN BUS,but also UDS diagnose protocol. Because old MB STAR C4 main board do not have UDS chip, so old MB STAR C4 can not support it;
3. Multiplexer now use Lan cable to connect, can fit Only applies to DELL computer and ThinkPad  computer
4. Connector adopt Military quick swap technology, it can support 10,000 times pull plug, more stable;
5. All core accosseries adopt original new packing chip, and 24hours test, guarantee the quality of the products;
6. Support multi-language, such as English, German,French,Italian, Spain, Portugal, Finland, Denmark, Sweden and so on.

The Black plug is of course ground, which will go in pos 1 on the Data Link
The White plug is marked KL15 which I understand is going to pos 16..?
The red plug is marked 12V B+, don’t know where this goes.
The blue plug is marked K-Line/LIN, don’t know where this goes.
There is to groups of plugs with two plugs in each. One Green and one yellow. One group is marked CAN HS and one is marked CAN LS. The green plug in each group is marked CAN_L and the yellow is marked CAN_H.

Solution:
Here is the MB SDConnect C4 solution I found on a forum. I have tried it successfully as follows:
Connect Red to +12v battery directly, White to pin 16, Black to pin 1, and Yellow to pin 8 (some motors like M111 series) to get HFM error and live data, Pin 7 for HVAC, Pin 6 for airbag etc.

Result:
After trial and error a gazillion times, this is what we ended up with, and the software actually responds!!

So it seems the BLUE jack, marked K-Line, is the one you’ll have to move from pin to pin according to the software’s instructions. Mission accomplished!:-)

Hope it helps you out also.

http://www.fobdii.com/category-15-MB-Star-Diagnostic-Tools.html