These cars use hydraulics for clutch release and engagement so, there is no adjustment within the linkage as you might be used to. There is a clutch master cylinder (actuated by the clutch pedal) and a "slave" cylinder (which actuates the release lever). You can check the reservoir of the master cylinder and add fluid if it is low (although, one should check for leaks because, why should the reservoir be low or empty?) bleed any air out of the system. The release "slave" cylinder is a sealed unit and not repairable.
Why the engine revs rather than going to idle sounds like another issue.
Get yourself an inexpensive repair manual - it will be well worth it in the long run.
Dec 31, 2008 at 2:18 PM