Since the dipstick is a special tool & works in almost all MB 722.6 transmissions, it doesn't stay in the tube! To check the fluid level the dipstick should touch the bottom of the pan & that is where you get the correct reading. You need a new lock-tab to secure the cap back onto the tube

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator