I just replaced rear calipers and flushed new fluid in.I had a helper,the book says to start with wheel furtest from master cylinder( passenger rear,then driver rear,passenger front,then drivers front). Ok with my son manning the brakes,I have him pump 10 times,hold it to the floor open bleeder Repeat,till fuild bubble free comes out.Takes maybe 5 times till new fluid shoots out(empty master,with turkey baster,pour new).
I repeat this on all 3 remaining wheels.Some times little bubbles will still remain,what I do is take a stick or something to hold down brake pedal at night.Maybe take all week.Soon you will have top working brakes.
Note* Always check if brake pads slide freely,I have had to grind coatings that stick in calipers, or the caliper itself.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt

For less than the cost of 30 minutes labor at most shops you can buy a pressure bleeder that makes a one-man 20 minute job of bleeding brakes. Should cost around $50. or less with the correct adapter for your car and it won't take "days" to do the job. The one I use is a Motive Products Model 0100. Comes with old Benz adapter and is available many places including ebay.

Some advocate the use of a vacuum bleeder such as MityVac but the vacuum bleeder is vulnerable to sucking air in around the bleed screw threads when it is loosened.

Oldsinner111.... you are just down the road I see! I am in Bristol - what, 20 miles away? Small world!