How do you think I feel!!!
And.......did I mention the ignition switch broke off inside the steering coulomb on the truck.
Not to mention the x called, she put braces on my 13 Y/O and sent me the bill.
Legal extortion………..I hate lawyers……..
How is your day??
I pulled all the calipers off...........
bench testing each one.................
Ill pull the line later.....
Stopping for dinner............

You are getting very close on the diagnosis and repair.
Don't surrender to a car.
Send me a picture of the ignition, glad to help you fix it.
Can't help with the X, life sucks, some times.
Follow the link for support on putting your life back on track.
When life hands you lemons - just make lemonade.
http://www.makinglemonade.com/

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Roy, you and Anthony didn't go off line did you?

Inquiring minds want to know what it was

still here Brian .................
Just relaxin
Im gonna bleed the brakes on the 300Se.....just to see what hyappens!!

Don't do it. With your luck you might have two of them parked.

Roy make any headway with the disconnect of the vacuum booster?

Disconnect the brake power booster vacuum line, plug and retest with the car running?

Disconnected the brake power booster vacuum line, plug and retest with the car running. Seems like a firm pedal....just like the car was not running. Same as the 300se. The 300se brake pedal is firm and travels just past the gas pedal.
Drove the car, will not stop unless you pump up the pedal. then it continues to the floor.?????????????????????????????????????????????????????????????????????

Fixed the actuator rod for the ignition switch on the truck........
Piece of cake......................10.00 dollar part.

Not sure if this will help but on my 1983 300SD I had the same problem until I saw that the Master Cylinder had TWO resivours in it. I had to keep pouring fluid in until the front was overflowing into the back one. Dennis

Leaving it on the railroad track is not an option. LOL
Please excuse my sense of humor.

Going back.
You did bleed the master cylinder, ABS motor and all four calipers during your last bleed?

If this is true?
The ABS relief valve is mechanically stuck open or you have a bad master cylinder.

Gad, whish you where close to me, I would come over and help in person.
There is a gremlin loose in your system.

Is there another forum member close to you that could help?

Well .............
I really want to drive this car
New Conti tires......new 8 hole wheels........brakes w/ cross drilled rotors.

How do you check the ABS relief valve??
Going to plug up the master right now and stomp on it!

(The ABS relief valve is mechanically stuck open or you have a bad master cylinder.)

Just a WAG here... does your car happen to have ASR? If so, there is a special bleeding procedure for that unit. (I forget if any W126 had this, but it was optional on the W124 and W140.)

When you get the car stopped, and get a decent pedal, and hold it down... does the pedal sink? If so, there is a LEAK somewhere, or the MC is bad.

If you have to pump it up, stop the car, and when you hold the pedal down it remains firm... you have air somewhere in the system. Try up to 30psi in the pressure bleeder, btw. I'm pretty sure MB specs 25-30psi for pressure bleeding. 20psi may not be enough. There is also a spec in the manual for the amount of fluid to capture at each wheel, but I forget offhand how much that is. I like to push at least 100 or 200 mL through, just to make sure I flushed out the old junk.

__________________
Dave
Boise, ID
Check out my website photos, documents, and movies!

Thanks Dave
The pedal will pump up with 3 hits.
Then it will go down again if you hold it.
I was looking for some brass plugs to plug up the master and then start the car and push down.
If the pedal is firm then the MC is OK.
Then I can look elsewhere.
The car is equiped with ABS.
2 lines in, 3 lines out. One for the rear one for each front.
I did disconect the electronics from the ABS and power bled the system with the ABS pump on.
Nothing seem to work.
Ill have a better idea tomorrow
_Anthony

Hello Anthony
This is getting into deep diagnosis.
We need to talk direct about your car.
Will PM more in a moment.