Hi,
I'm very sorry to disagree, and in no way am I trying to be confrontational, it is just that I do all diagnostic and rectification works on all Cars and LGV's all day long
Like many other tools, the iCarsoft tool is not "pretty good" you just think it is for what could be several reasons, one of which is because they are oversold by both folks who own them but are not as knowledgeable as they think with regards to the minefield within Cars which are "Rolling Computer Networks", also by salespersons that have no idea what they are selling and why it will lead it's operator "up the garden path" ..............
SDS is the only tool that will access
all Modules,
all Codes and
all Data, but it doesn't end there, SDS is waaaaaay more than just a "Reader / Resetter"
I am not going to type chapter and verse, done it too many times, if you search around you will find some very informative stuff on this and other Forums, by myself and many others.................
This very thread contains 2 examples from guys who bit the SDS bullet in recent times .............
@Mslisaj bit this very Bullet recently, and she has extensive knowledge of working on multiple makes using regular OBD Machine (s), but she has grasped SDS very quickly and can testify to the power of this $500 machine, nothing else even comes close
A lot of my work is sent to me by many other Garages in the area, who have way better equipment than ICarsoft and similar but most Garages do not have Dealer Level Equipment !!
I now own Dealer Level Kits for around 15 different popular Marques that travel on the roads, plus 3 really good "Workshop Quality All Makes" Generic machines, and so far, in my many years I have never failed to fix any Vehicle..........................
And yes, even someone like me learns something new every day and the newer the Cars the more of a Bear we are wrestling with

.........................
But the R170 is an older and simpler Car I hear a lot of guys say ................
Well yeah, older it is, but MB have always been the pioneers, so a 10 year old MB has technology that some Mfrs are only just fitting today................
And also the R170 is kinda unique, it is not just Modules all talking over CAN Bus / LIN Bus, it is a mixture of CAN and also Relays / hard Wiring which makes a lot of faults much harder to deal with until you get to know your way around an R170, this applies more so to both the Pre & Post Facelifts for different reasons, these R170's are kind of an "Inbetweener"

I came here with a huge knowledge of C, E, CLK, CL, and S Class Cars plus Vito's and Sprinters but I soon learned that my 2002 V6 R170 is similar in many ways, but also a very different animal and yet another steep learning curve.
HTH,