I have noticed that my clutch squeaks when I engine brake down from 3rd to 2nd. It doesn't do it if I am changing down from 3rd to 2nd and the clutch doesn't give any resistance. It sometimes does it from 2nd to 1st but not that often even though it seems to offer the same amount of resistance. Doesn't do it in any other gear.
I'll get the noise until my foot is off the clutch and although I say it's a squeak noise, it sounds more like a squealing grinding noise but my boyfriend reckons I'm being a hypochondriac and that it's not something I need to worry about.
Car has done just over 80,000 miles and is 06 plate Astra. I have had it for a year so 15,000 of those are my miles but this noise is a recent acquisition.