Clutch Pedal randomly falling to the floor
 

Good Morning,

I have a 93 325is.
I have about an hour commute each way, 55 miles.

Last week I noticed that when I come out in the morning to head into the office the clutch pedal is down about half its travel to the floor. If I pull it out and pump it slightly (pump in the slack area) it firms back up and isn't an issue. Especially on a Monday after it sat for a day or two.

Then this week a couple times after I'd been driving for 45 minutes or so on the highway with no clutch activity when I went to down shift the pedal was literally on the floor. I could get my foot under and pull it back and it would firm up with a gental pump <that's just funny/>.

Given that my tranny seems to act, release, and shift without other issue I'm thinking this is clutch slave related.

What do you all think?
Thank you for your help.

Brian
Houston, TX
'93 325is E36

From another forum, appears to be the master cylinder.
http://forums.bimmerforums.com/forum....php?t=1698450

Would still welcome any tips, advice on replacing.
Thanks

Brian

I think you've diagnosed it right. Also, as I think the clutch hydraulics are integrated with the brake hydraulics, check the level of your brake fluid and check for any leaks in the system.

Sounds like your slave cylinder. Check for leaks under your vehicle. Dropping to the floor usually indicate a massive drop in pressure.