Are you talking about the 6 little springs on the clutch Disc? they can break. I had the 2 larger ones (opposite each other) break after 22K miles.
I pulled a transmission out of a 300D last week, and the disc had the same 2 broken springs. disc was worn out, almost to the rivits.
This broken spring thing could be common.
I paid $148 for the disc last fall, now I see it is $185.
Charlie