Manual Transmission Trouble on 2006 Kia Rio

I have a 5 speed Kia Rio that is making a pretty nasty sound as you depress the clutch pedal. A mechanic friend said the transmission could be low on fluid, on this manual transmission is there a spot for fluid? Is it time to replace the clutch?

Asked by for the 2006 Kia Rio
Sounds like the clutch throw out bearing is bad if happens when push pedal in. When remove inspect the clutch for replacement. If release pedal and noise is gone then lean that way. If release and noise is still there then could be clutch or trans. Does it shift ok?