Join Date: Jul 2012
Location: West Chester PA
Car Year: 2001
Car Model: Forester S
Forester Trans Dip Stick
My 2001 Forester had similar difficulties. The rubber O-rings used by Subaru on the transmission dipstick are not really rated for that application. They age & harden due to heat & hydraulic fluid exposure. Then you have trouble removing the dipstick. And when once removed, it may not stay in place. Yes, I too broke the yellow pull handle at one point.
If not yet broken, you can replace the O-ring with one from the hardware store.
Once broken, you may as well bite the bullet and for $12 or so buy a new dipstick.
Best to clean out the tube as well, removing any rust or dirt that may have accumulated. Erik