The "shop" dipstick can't be left in the car & THEY should not ever sell the 111-010-11-72 for that model as it won't give correct readings.
IF you mark that dipstick(111-010-11-72) with the correct level from the inst cluster readings then you could leave it if so desired.
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)