Mercedes SD C4

How to Set up MB SD Connect C4 WIFI

MB SD Connect C4 is an MB Multiplexer C4 Mercedes Benz diagnostic tool. Wifi / Wireless Mercedes Star Diagnosis MB SD Compact 4 Mux supports UDS chip. Many [...]

How to Fix Broken SDconnect C4 Voltage Issues

I have a broken SD Connect C4 on the bench and was asked to try to fix it. Without batteries inserted my bench power supply shows the set 13.8V and around 400 [...]

C4 SD connect does not load to the end

The essence of the problem is as follows - the C4 SD connect multiplexer stopped loading to the end and after the phrase "the device starts up" on the display [...]

How to solve the problem of five icons appearing on the MB STAR C4/C5 display

There are five icon problems on the C4/C5 display Five icon problems appear on the MB Star C4/C5 display Connect 9V dry battery as [...]

How to solve MB Star C4 System Error(s)”2221-32″ Internet Error

MB Star C4 is professional diagnostic and program tool for Mercedes Benz cars, trucks, buses, support models from 1996 to 2018. Some of our customers meet the [...]

MB SD C4 Firmware Update Manual

1. Prepare 6 common AA batteries of 5. Then install the battery by following the Manual of How to Install Battery for MB SD C4. (Notes: The batteries need to [...]

MB SD C4 “00” Icon and Initialization Multiplexer Failed

Problem: I got the MB SD C4 Xentry and EVG7 tablet full kit.   EVG7 displays “00” icon on Toolbar.  Also failed to configure SD C4 main unit.  How [...]

How to Set Wifi Connection for Mercedes SD C4C5

Mercedes SD C4 is professional diagnostic and programming tool for Mercedes Benz cars and trucks. When you received the C4/C5 multiplexer, you may would like [...]