No it doesn't make any noise when rotating the wheel. This issue has been puzzling me since friday when i got my car back. But today, as strangely as it appeared, the problem has now disappeared and the steering lock works perfectly as if there had never been a problem!
I am of course happy that it's working, but still a bit concerned as to what may have caused this and whether this could happen again - or worse still, if the steering lock came on when the car was in motion.
Thanks for your reply Brettski, I will keep an eye on this and try to find out why it happened in the first place.