Another clutch related problem

Hi



I've got an '04 ZT-T CDTi with a clutch problem as follows and would appreciate some info/advice. I've done a search on here but there doesn't appear to be that much said about clutch release bearings. Am I to assume that the CRB is part of the slave cylinder assembly?. My car has 163k on the clock and was fitted with a new 3 part clutch assembly around the end of last year/beginning of this one by my local garage, clutch supplied by DMGRS on here. No problems with it until a month or so ago when I noticed a whining noise whenever I pushed the clutch down. This disappears when the clutch is released. Gearchange is splendid and no signs of any fluid leaks either. I've got a good idea of how a CRB works so I'm pretty sure that's where the problem lies. I can put up with the noise and the car drives well but have I got cause for worry ie am I looking at imminent failure? I know that the slaves on these cars are iffy but that usually relates to fluid leak. Would appreciate any answers or confirmation at least that I'm looking in the right direction.

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