MB SD Connect C4 with wifi, it supports K line,CAN BUS and UDS protocol, fits all computers with multi-language. MB sd connect c4 supports reading out & erasing trouble code, reading the real-time data of sensor and actuator, coding and programming, it also supports WIFI. Software version: 2014.09 Firmware version : 2.2.2 (support firmware update)

1. Tutorial on MB SD Connect C4 Self-Diagnosis
Why MB SD Star C4 self-diagnosis is necessary?
In order to confirm that MB SD Connect C4 is well connected with computer and vehicle; a
self-test can help reach the goal.
Meanwhile check whether the IP address and parameter is set correctly, and then make sure the
MB SD Connect C4 is well communicated with each other.
How to do MB SD Connect C4 self-test?
1. Communicate the MB SD C4 main unit into vehicle’s diagnostic socket and also communicate
with the computer.
2. Insert the DAS CD software and operate it. Choose “Star Utilities” on the desktop and run it.

2. 3. Choose “Self-Diagnosis” and then click “SAESAR Self Diagnosis”. The toolkit is being initialized
4. Come to the self-diagnosis program. It will display SD Connect name and vehicle. Click “Start”
to continue.
5. The whole process being done, the self -diagnosis result will pop out. Pull down the menu to
check complete self-diagnosis result.

3. So far, it is the whole process of MB SD Connect C4 self-diagnosis. While there may be some
reasons that result in failure.
Note:
1. As mentioned above, do not set SD C4 well.
2. Do not set COM PORT as COM2, which may lead to following four results:
1). COM PORT has problem or damaged;
2). Poor connection between computer and MB SD Connect C4 unit;
3). Cable or MB SD C4 does not work;
4). Disconnect the SD Connect C4 from the computer.
3. If the system displays 3001 error, the device may have problem. While come with any other
errors, you had better contact the supplier or technical support.
Check more technical service here:
http://www.careucar.com/wholesale/newest-version-mb-sd-connect-compact-c4-star-diagnosis.h
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