After having P/Steering filters in their cars for over 60 years, MB quit installing them in 1996!!! SO just change the fluid, suck it out then replace the fluid removed!
Take a look at the do-it yourself as replacing brake pads should be covered there.
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)