Is it possible to adjust the clutch?

The car has a worn clutch, I want to replace it.

Having an issue with my 2012 Passat, the car had a new clutch, flywheel and cylinder put on before I had the car, I’ve ran the car for nearly 3 month and it’s been fine apart from the past week it’s been very hard to get the car in gear, goes into gear when engine isn’t running but won’t when running.
Any ideas what could be up ?

When I attempt to drive/take off in 1st gear I am hearing a
Strange knocking noise,. Once I have picked up speed and changed to 2nd the noise is gone... No problem in selecting gears, just this noise. The other day when I was changing gear I found a vibration in the clutch pedal. Anybody any ideas as to what this might be. No warning lights etc on dash... The mouse started 2 days ago and I think it's staring to get worse.

Transmission 5hp-19. The gearbox pan was hit and the oil level in it dropped. The box went into emergency mode. After reading the error "4th gear clutch slip" and resetting the error, the gearbox went out of emergency mode. Now sometimes the gearbox disappears on the move, the revs are increasing, but the car is not picking up speed in any of the gears. But the speedometer is increasing, as if the car is moving.

Hello everyone! I had a problem with the clutch: it stuck to the floor. I went to the mechanic and changed the clutch pump, the problem appeared again, only the clutch stuck to the floor only on the fourth or fifth start. I then changed the gearbox piston. The same thing happens: the pedal locks only like now when the engine is warm. I try to start it after driving the car for a while and it stops and it just tries to start and doesn't do so shaking a little bit hard. I try to start it several times and the same thing happens, the fourth or fifth time it starts. On the go, it's ok, as if it ha… Read complete

My car was without being used for 7 months because its clutch was damaged. A week ago, I took it to the mechanic because it could not be started, he moved some relays and it finally started. The problem is that the acceleration is now failing. I was told that it is misconfigured as it was a long time disconnected from the battery. But when the vehicle was scanned, the computer could not be read. I don't know how to do to be able to see the computer because its connector does not show any signal. Can someone advice me please?