Is the creaking noise coming from inside the car ( Or seems like it is ?) As I had a similar experience with an R32..Turned out the pedal box broke a spot weld and eventually pedal fell to the floor...Lie on the floor with your head facing up under the dash and work the clutch pedal if you can , make sure you have a decent torch so you can see what is going on....If thats the problem its an easy fix-cheap too...I also had to put in a new clutch master cylinder as well...Whether or not this caused the initial problem I dont know, But it was cheap and easy to do as well