Major clutch pedal vibration

[ovation1000]

I replaced my clutch about 2,000 miles ago everything went fine I was very meticulous. Yesterday the clutch pedal went spongy and started engaging low to the floor, now this morning there is a lot of vibration and knocking noise through out the whole travel of the clutch pedal.

I have had to bleed the slave cylinder a couple of times since the replacement (pedal was staying on the floor) could it be just the slave cylinder?

I replaced everything with new parts including the throw out bearing. Just looking for opinions before I start this. I am going to replace the slave cylinder hopefully that's it. Original slave cylinder 244,000 miles.

[Pelican Parts]

From your description, it definitely sounds like the slave cylinder. Other members might chime in with their thoughts as well. I'm attaching a DIY link below for the slave cylinder replacement procedure if needed. Please let us know if you have any questions.

https://www.pelicanparts.com/BMW/tec...utch_Slave.htm

[ovation1000]

Thanks a lot

[woody328is]

Definitely start with the slave but the vibration part is a little odd. 244K is impressive for the original

[spyderg0d]

The only time I've felt vibration in the clutch pedal was when a throw out bearing was blown up. It melted and allowed the pivot arm to contact the pressure plate. Felt the pulse through to the clutch pedal.

[ovation1000]

I used a brand new bearings and installed correctly I really hope it's not the bearing. I'll update when I change the slave cylinder.