[strictlypersonl]

Test the clutch function this way:

With the car on a level surface, release the handbrake.
Put the car in reverse with the engine not running.
Start the engine with the clutch pedal fully depressed.

Does the car creep at all?

How much do you have to raise the clutch pedal before it does? Any juddering?

Unfortunately, this test is imperfect if the driven-disc's friction material is coming off the plate.