This is very spooky, but I also drive a 1.2 2003 Billabong and exactly the same thing happened to me today.
I have noticed an intermittent rubbing sound on my front nearside wheel for a few weeks, which seems to happen when I drive over a speed bump, but goes away about a second later.
Today I noticed that the rubbing sound returned, but this time it seemed to coincide with the ABS and SERV lights coming on. Strangely they go out when I restart the engine, but the next time I break, the ABS kicks in straight away - even if I only break lightly - and then the ABS shuts down and the lights come back on.
I've read a couple of posts on a site called Renault Forums, that seem to link my problem to a loose jubilee clip on the CV boot.
Word on the web is that some Renault dealers try and charge you £300 for a new drive shaft because they claim that the ABS sensors can't be replaced separately, but then most Renault Dealers talk more cr*p than a turd salesman