There are some fancy gadgets about now, (I always fancied one of these
https://www.scangauge.com/products/scangaugeii/) but the vast majority of them are useles with a Renault.
You'll get a set of codes that look like they should mean something, but they won't.
Renault's software is specific to them, and as far as I'm aware, nobody has bothered to crack it.
You can buy a CAN Clip reader if you really want to dig into it, upwards of £80 iirc
Edited by: Prof Pat Pending