Flushing means removing ALL of the old fluid & replacing it with new fluid.
I do that several times a year on my 16V racecar. Start by removing the fluid reservoir & rinsing it out with new fluid.
Reinstall the reservoir WITH new grommets & then bleed out all of the old dirty fluid. OF course the best way is to POWER bleed the brakes.
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)