|
|
|
|
|
#1
05-31-2005, 03:39 PM
|
|||
|
|||
|
Intermitant Soft Brake Pedal
I need some help diagnosing a problem with my brakes - the problem is intermitant, some times the brake pedal is very soft and other times it's all there. Particulars - 1992 500e, new rotors and pads, complete brake fluid flush. Is the problem the master cylinder, the brake booster or the inline check valve to the brake booster.
Thanks for the help. 
|
|
#2
05-31-2005, 03:49 PM
|
||||
|
||||
|
Now when its soft are we talking soft in that the pedal will sink to the floor..if so please get a new Master cylinder post haste....if its the booster not working it would get very hard...not very soft.
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
|
|
#4
05-31-2005, 04:05 PM
|
||||
|
||||
|
Soft to the floor is a definate bad Master Cylinder.....I am assuming the brakes have been properly bled....if so then its too dangerous to drive as-is....the next time they may loose all effect and trust me the Emergency brake is not going to do much to stop you when you need to stop the most.
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
|
|
#6
05-31-2005, 06:38 PM
|
||||
|
||||
|
Consider what Ridge had to say in this thread:
Brake Pedal to Floor after bleeding If the spongy pedal came along AFTER all the work was done, it's not likely that you suddenly developed a faulty mst. cyl.
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein"
|
 |
| Bookmarks |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Wrong fluids in the brake system. | ericnguyen | Tech Help | 17 | 04-01-2005 07:31 PM |
| Toyota Camry brake pedal goes to floor | biobill | Off-Topic Discussion | 9 | 03-14-2005 02:14 PM |
| High pitched squeak, parking brake pedal mushy - stuck parking brake? | nategodin | Diesel Discussion | 2 | 03-11-2005 11:52 AM |
| 126: Brake Pedal Hard on start | 300sd2000 | Tech Help | 3 | 05-26-2004 12:48 AM |
| Low Brake Pedal 1997 SL500 | kansas77 | Tech Help | 7 | 10-09-2003 11:05 PM |
Linear Mode
