Yes, I am 100% sure there is fluid, filled all the way up in all chambers of the reservoir . There are some small bubbles in all chambers that I can see, so I know they are full.

This is why I think it may be the seal between the res and MC. Could the seal be blocking the tiny hole in the MC?

__________________
Ginny in Denver-ish
78 300SD, 265K (mine)

Do the test I described. It will answer your question.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

just crack them open and see if they drip?

okay, will do. If they are dripping, what does that mean?

If they are not dripping, what does that mean?
Also, which lines go where? Does the front screw go to the back wheels?
Do the two side screws go to the fronts?

Thanks!

__________________
Ginny in Denver-ish
78 300SD, 265K (mine)

If fluid comes out when you press on it brakes it means the reservoir is feeding into the MC. You'll have to trace out the lines to see what goes where.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

it makes no difference how you put on the reservoir, as long as it's on, and the seals are not leaking it's fine.

the front line goes to the back brakes, and the two rear lines go to the corresponding front wheels.
crack the rear driver's side line open, and see if any fluid drips out.
then have someone S L O W L Y press on the brake pedal and see if fluid comes out.
if it does, GREAT the MC is fine. if not, when the pedal is all the way to the bottom HOLD IT, then tighten the line up and have the person pushing the pedal let up, while you fill the reservoir.
if you have a vac leak, the MC I sent you must have the rear seal letting out some vacuum. swap the seals between the MC"s.
I thought I sent you my Phone # to assist with issues if you had any.
it's in your PM's.
I'm up right now!

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

I did just this tonight >:|
Is there any way to just replace the bleeder valve? I could likely tap it out with a reverse thread removal kit. How can I determine the correct part? I would have to have to replace the entire rotor just for this one piece.

Thanks

IF you can get it out with an easy out (and that's a big if) most auto parts stores should carry replacement bleeders.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Welcome to the forum drglock - sorry to hear of your troubles. An easy out like you say might help. If not (and if you can find them) left handed drill bits could also help - you need to turn them in reverse as you drill into the snapped off nipple. Drilling in reverse sometimes helps the snapped off thread come out.

As for the sizes of the bleed nipples - for my ATE calipers there are 2 sizes available. I'm quite sure that one has a M8 thread and I think the other is M7 - but then again it might be M6... sorry to be vague about these sizes. I ended up buying both sizes from the dealer as my old ones were so corroded you couldn't tell the size just by looking.

Good luck.

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!