When driving 50kph (30mph) plus, steering will lurch independently to the left or right.

When the key is in the ignition, a thin noise is heard near the alternator, like the one two metals make when they are sticked to one another. I personally believe it has to do with the steering because, when turning the steering wheel completely, the noise becomes louder and more constant as well, as if it were scraping something else. However, the steering is working properly, it is not harder or anything. What might it be?

Renault Clio cars need the maintainances and services to be done at the right time, ideally with original replacements. In my case, until the 60000 miles driven, I had no inconveniences, until one day, the car did not start any more. It was scanned and it ended up being a steering sensor failure. It was replaced and the problem was solved. Now, at 70000 miles, the failure appeared once again; sometimes it starts at the first attempt, but other times I need to keep trying. I was advised to remove the steering sensor and clean it properly, as the dirt that is adhered, isolates it and prevents it from giving the starting signal. That is why I suggest to keep all the car parts properly maintained at the right times. Hope my experience helps you.