Table of contents: Is the clutch slipping or not? ↓ Is the clutch "leaning"? ↓
It is impossible to detect wear of the driven disk in the installed state. The first sign of wear is clutch slippage. Slipping clutch first attracts attention in the highest gear when driving with a load. The engine picks up speed, but the speed remains the same. You can get a certain idea of wear by doing the following experiment, which should not be repeated too often.
Is the clutch slipping or not?
Put the car on the handbrake and start the engine.
Engage third gear, slowly depress the clutch and give it gas.
With a good handbrake the engine should stall.
If the engine continues to run, the clutch needs to be repaired.
Is the clutch "leaning"?
If the gearbox is difficult to shift even with a warm engine or the shifting process is accompanied by scratching or creaking sounds, then most likely the clutch does not fully disengage, i.e. it is "driving". Damage to the gearbox rarely causes such an effect. To be completely sure, we will conduct an experiment with first or reverse gear:
Leave the engine running in idle mode.
Depress the clutch pedal fully, wait about three seconds, and then try to engage first or reverse gear.
If the gear is difficult to engage or the gearbox creaks, this means that the clutch is "leaning". The driven disk does not rotate completely freely.
Check the clutch hydraulics and bleed them.
Repeat the above experiment again.
Other causes of non-separating clutches are listed in the list of faults at the end of the chapter.
(Read the original source on the website: «AudiManual.ru»)