Like you said, seeing information about the ECU, clearing DTC.
But for me, I have a Corsa VXR, which is more powerful than a Scenic, so information like turbo boost, coolant temp., … are very important.

Hi CaGeN, my responses are embeded in between the lines of your original post.

I’m based in the UK and just realised there are no fault codes for the Renault car manufacture.

Do you mean in your specific car or in general? It is indeed well known that Renault try to circumvent ECU access by anything but their own diagnosis system…

I have a Renault Scenic 1.6 2000 using a Samsung Galaxy S I9000 and can see all the engine info come up within the app.

It’s good to hear that someone has managed to connect to a relatively old Renault ECU, 2000 in your case (BTW, what OBD interface are you using?). What interests me is whether your OBD dongle + Torque can read pre-2000 made Renaults (mine is a 1997 Megane), do you have access to such vehicles in your area?

But apart from seeing all the info being displayed, and saving a little cash at the garage paying for diag tests. What other reason are you all using this app for?

What I use OBD scanners for is preventative monitoring and maintenance because sometimes small problems that aren’t taken care of in time end up with BIG problems and expenses or at least cause more wear and gas consumption. Also, I’d like to be able to read DTC and data from the the auto-transmission ECU since this is important to maintain and prevent premature failure in this expensive to repair subsystem, but as yet have failed with 4 professional scanners and made it only with the (pretty expensive) Renault in-house diagnostic tool (Renault CAN CLIP).
If you have more/new info on Renault compatibility , I’d be happy to hear.
Cheers!