How to choose for Mercedes and BMW? SD Connect C4, VXDIAG VCX SE or  XDIAG VCX C6?

car diagnostic tool

Do you have ever encounter this confusion like this:

I really do not know what to do. I have a Mercedes Viano 3.0 CDI V6 year 2006 and my wife has a BMW Serie 1 year 2005. I have a problem with my Viano and I wanted to buy a SD Connect C4 on China, and I also see that there is a VXDIAG VCX C6.

I want to know: What is the difference? With the SD Connect C4 I can read that Mercedes? With XDIAG VCX C6 I can read the 2? Mercedes and BMW? Can you tell me the best to choose please?

In my opinion, C4 and XDIAG VCX C6 are only for Mercedes. For BMW you have to buy another VXDIAG VCX SE.

Attach the chart for you:

MB-diagnostic-programming-tool

Hope it helps you.