So, my girlfriend's clutch petal starts feeling REALLY bad the other day, way too light, and engages just barely above the bottom (pedal completely depressed). We hook it up to a pressure bleeder and bleed the system, get some air out, and it feels fine. Unhook the bleeder, and there's nothing. We try pumping it up to build pressure, but it doesn't really do anything.

Yesterday we replaced the clutch master, thinking it had failed, but still no difference. Slave is new too. It seems like every time we bleed it we get air, but I have no idea where it's coming from...? This must be an air pocket getting in the system, as far as I can tell, but I'm stumped, and the mechanics down at the shop are just as lost.

Any ideas???

-Tim

(btw, this is on the '94 325is with the '95 M3 swap... we looked at AllData, and it said to pull the slave out and compress and depress the piston by hand... still no improvement)