I have this problem.  It appeared right after the dealer installed a new
clutch, disc, and TO bearing.  I replaced the slave cyl with no change.
Bled the brakes with a pressure bleeder like the big boys, still a problem.

    Soon it will be torn apart and the following done:
    Surface flywheel
    New pressure plate, disc, TO bearing, TO yoke bushings
    Lube

Full report when it's done.......
    Randy

R. Hotchkiss wrote:

> Hey all,
>
> I recently replaced my leaking clutch slave cylinder and to my surprise
> I no longer have a clutch chatter.  I've had the chatter for 32k
> miles...since I bought it...and thought it was the pilot bearing as had
> been mentioned by others.
>
> If you have a chatter problem, cheap try is to rebuild your slave
> cylinder.
>
> Hotch
> 86 Vangon GL
> 89 Jetta GL
> Philly