Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-16-2004, 06:03 AM
Registered User
 
Join Date: Jan 2004
Posts: 13
Unhappy brake bleeding problem

My car is a 88 190 2.3-16, i have recently fitted new rear offside brake pipes (flexi and copper) along with a new caliper, ive now come to bleed the brake but seem to be getting no-where, here are my observations:
The fluid in the master cylinder doesnt seem to be going down after maybe 20 mins of bleeding,
When the bleed valve is opened, a small amount of air will come out it,

Is there a special proceedure on this car? or somthing im missing as i spent over an hour last night on the back to no avail,

any help greatfully recieved

__________________
190 2.3-16
Reply With Quote
  #2  
Old 08-16-2004, 08:30 AM
Q Q is offline
Registered User
 
Join Date: Aug 2000
Posts: 839
Are you using suction, pressure, or someone holding the pedal down while you open the valve? Check here for bleeding techniques.
Reply With Quote
  #3  
Old 08-16-2004, 09:00 AM
I told you so!
 
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,848
Quote:
Originally Posted by chris-edinburgh
...i have recently fitted new rear offside brake pipes (flexi and copper) along with a new caliper...
Are you saying you replaced the brake line with copper? This is a no-no. The copper can't handle the pressures used for braking and would certainly fail after a while. Only tubes specially made for brake lines can be used. These tubes are called Bundy tubing.
__________________
95 E320 Cabriolet, 159K
Reply With Quote
  #4  
Old 08-16-2004, 09:22 AM
Registered User
 
Join Date: Jan 2004
Posts: 13
Q: The technique im using is some1 holding the pedal down while i open the valve, (never really had any problems using this way before on other cars,

Kestas: Yeah its proper brake pipes that were made up by a local car parts shop.
__________________
190 2.3-16
Reply With Quote
  #5  
Old 08-16-2004, 09:29 AM
Senior Canadian Member
 
Join Date: Jul 2000
Location: British Columbia, Canada
Posts: 827
Quote:
Originally Posted by chris-edinburgh
Q: The technique im using is some1 holding the pedal down while i open the valve, (never really had any problems using this way before on other cars,
Are you having your helpe pump the brake pedal a few times before opening the bleed valve to build pressure in the system?
__________________
'94 W124.036 249/040 leder; 8.25x17 EvoIIs
'93 W124.036 199/040 leder; 8.25x17 EvoIIs, up in flames...LITERALLY!
'93 W124.036 481/040 leder; euro delivery; 8.25x17 EvoIIs
'88 R107.048 441/409 leder; Euro lights
'87 W201.034 199/040 leder; Euro lights; EvoII brakes; 8x16 EvoIs - soon: 500E rear brakes
'70 R113.044 050/526; factory alloys; Euro lights
Reply With Quote
  #6  
Old 08-16-2004, 09:38 AM
Registered User
 
Join Date: Jan 2004
Posts: 13
yhliem: Yeah, the pedal is pumped between 5-10 times before each bleed,
__________________
190 2.3-16
Reply With Quote
  #7  
Old 08-16-2004, 11:18 AM
glenmore's Avatar
Registered User
 
Join Date: Sep 2002
Location: Los Angeles
Posts: 963
You've probably bled the rear part of the resevoir dry and the fluid level in the front chamber is not going down. You may have your car on a slight incline with the nose down. Fill the resevoir full full full and check it often. It does not take much fluid to bleed lines.

glenmore
1991 300CE
Reply With Quote
  #8  
Old 08-16-2004, 12:38 PM
Registered User
 
Join Date: Jan 2004
Posts: 13
glenmore: hi, i think you may be right with this one, cos i wasnt sure if the resevoir had different chambers, but the car is inclined at the rear, ill go home and try it again, cheers
__________________
190 2.3-16
Reply With Quote
  #9  
Old 08-16-2004, 02:39 PM
csnow's Avatar
Registered User
 
Join Date: May 2002
Location: Mass
Posts: 1,127
Been there. Has to be very full to spill over into the rear chamber, even without incline. Helps to clean the outside of the reservoir so that you can see the level of the rear chamber.
__________________
1986 300E 5-Speed 240k mi.
Reply With Quote
  #10  
Old 08-10-2007, 09:09 PM
Registered User
 
Join Date: Jul 2007
Posts: 1
Thank God for this board! I replaced my rear calipers, and could not get them bled right to save my life. That is, until I searched this board, and found out that I needed to fill the reservoir up to the very BRIM, so that it would trickle back into the back of the reservoir.

Boy, I felt like an idiot... 20+ years of working on American cars did NOT prepare me for some of the little things I run into on my 190e!
Reply With Quote
  #11  
Old 08-11-2007, 04:00 AM
Registered User
 
Join Date: Mar 2007
Posts: 46
Rear Brake Bleeding Problems

Yes very important to fill to the brim so fluid covers this small air vent in order to fill the rear chamber. It is not easy to visually see whether the rear chamber is full or not. Before doing this I actually had the master cylinder totally reconditioned and then still could not get the rear to bleed.
Attached Thumbnails
brake bleeding problem-brake-bleeding.jpg  
Reply With Quote
  #12  
Old 08-11-2007, 12:04 PM
csnow's Avatar
Registered User
 
Join Date: May 2002
Location: Mass
Posts: 1,127
Imagine- This post was 3 years old, and it is still around to help someone. What an amazing resource.
__________________
1986 300E 5-Speed 240k mi.
Reply With Quote
  #13  
Old 08-11-2007, 01:33 PM
crhenkel's Avatar
Registered User
 
Join Date: Mar 2001
Location: Decatur, Illinois, USA
Posts: 616
Been there, done that...

I know the pain of the 16v fluid resevoir all to well. It looks full, it seems full, you might even be adding fluid to it, BUT, unless the sucker it to the top and more to spill over into the back compartment, you aint bleeding nuthin' but air baby! My dad and I bled the lines dry trying to bleed the system of air before I got in there with a good light and a magnifying glass and realized the front compartment was full and the secret rear compartment was bone dry. Sneaky Germans! I am sure it serves some other purpose other than confusing DIY guys like us, but, I will not soon forget that mistake and aggrivation of knowing how to bleed brakes and still not getting anywhere. After the rear was full and kept full all four lines bleed in no time easy peasy.
Silly Rabbit.

__________________
Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 02:30 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page