Has anyone bought an obd 2 to diagnose the Mercedes engine, I have looked at buying one but every time that its checked out from the supplier , it does not cover the crossfire, interested to know. saltiga

 

I have 2 that worked. A "Scangauge II" and a generic OBD to Bluetooth adapter with the app "Torque" on my android phone. I did have to send my Scangauge II in for an update to work with Mercedes/Crossfire, but it worked great after. It is a very nice device with trip features, and multiple gauge functions.

 

I use my samsung smart phone with an app called "Dashcommand". Its only a few $$ on the play store
The info from the OBD port is transmited via an ELM bluetooth dongle (ebay) to the phone.
It works very well .