Pretty straight forward. Start by siphoning off most of the fluid in the resevoir, then top it off with fresh fluid. Then bleed the brakes by either the pressure bleed or the old fashioned two person method. Start at the right rear, then left rear, right front and left front in that order. Bleed them until fresh, clean fluid is coming out, I think the book calls for something like 80ml of fluid bled at each caliper.
Be sure not to spill any fluid on the paint.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.