Clutch pedal squeak, but not the usual suspects

[seagreen323i]

I know I know research. I've only found dead ends and "it's the clutch pedal bushings". 2002 540i/6 pedal has a nice creak/groan when you depress it after the car warms up from underneath the car. Think worn out mattress. EVERYTHING in the bell housing has less than 40k miles on it. Brass pivot pin, tob, clutch fork, pressure plate/flywheel/friction disk, slave cylinder. I greased everything with the reccomend copper lubricant where it needed to be. I can feel a vibration almost in the pedal, kinda like when the abs pump goes to work and you get that feedback in the brake pedal. This only occurs at the bottem half of the throw at first and progressively moves up as the car gets hotter and hotter. I'm at a complete loss here and the only think I can think of is master cylinder, or the fact the tab that retains the solid line under the car broke. Any help would be greatly appreciated!

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[JimLev]

Can you narrow it down to under the dash or under the car?

[seagreen323i]

Can you narrow it down to under the dash or under the car?

Definitely under the car.

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[JimLev]

Has to be either the slave cylinder or the parts inside the bellhousing.
Can you get someone to work the clutch while your under the car listening/feeling around while the clutch is being worked?

[seagreen323i]

I had a buddy move the clutch while I stuck my head under the car at work. I couldn't really pinpoint the location. It's just under the car. When I wake up tomorrow I'm pulling the slave cylinder to make sure there is still grease on the end of the rod.

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[seagreen323i]

The fact that I can feel some sort of mechanical binding makes me think slave cylinder. Almost like it wants to get stuck to the floor but never does. My brake fluid was probably around when under glow was cool so might wanna flush that, just havent had the time recently between 2 jobs and school.

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[ross1]

No moving parts(under the car) that aren't inside the bell housing, sorry.

[Astrocyte]

It sounds like the contact point between the throw out bearing and the pressure plate fingers. I don't know why it happens on these cars but it when mine did the same thing after new stuff, I backed off the gearbox abit and put a thin film of grease on TOB face , noise is gone.

[Astrocyte]

Something else to add, if you still have your old pressure plate, get a biggish prybar and start levering the fingers with a slight sliding motion where the TOB touches and you will know the sound when you hear it.

[seagreen323i]

Appreciate the insight. My suspension rebuild I'm doing now consists of the center link I changed 40k miles ago with an oem part-_- so this got pushed onto the back burner. I appreciate all the advice though!

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[Astrocyte]

It's super annoying though ,right?

[seagreen323i]

It drives me absolutely insane because I can feel it in the pedal.

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[seagreen323i]

Update, pulled the slave and greased the shift. Fixed all of my issues!

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[Astrocyte]

That's good to hear ,I had assumed you greased it with the clutch job is why I chimed in. I grease every push point now.

[seagreen323i]

I did grease it. I guess just not enough lol

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