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 10-07-2017, 02:03 PM
Registered User
 
Join Date: Feb 2015
Location: union, nj
Posts: 105
Need brake help on my 94 e320

I have a leak under my driver side wheel I took apart the wheel well and followed the 2 brake lines I followed it and found a Bosch cylinder looking thing. Says under pressure.

I removed the part and the brake lines leading to the coupler.

I've been running on rear brakes only for along time. No fronts
Because the reservoir can't be filled.

So I tried to plug the 2 brake lines that led to the cylinder hoping I could get front brakes back
Pumped the brakes and the line bursted open, so that doesn't work.

I'm not sure what that cylinder does but it's hard to find any info not even dealer knows. Can I plug the abs where the lines come from or will it damage abs unit.


Last edited by bru023; 10-07-2017 at 02:14 PM.
Reply With Quote
  #2  
Old 10-07-2017, 06:21 PM
Mighty190's Avatar
Registered User
 
Join Date: Apr 2016
Location: Lafayette Indiana
Posts: 393
You do not want to plug the abs because can't cycle it to bleed. I don't see how it would damage it though if you did find a way to bleed the plug.

I have no idea what that pressure cylinder it is but it seems to be part of the ABS like you are implying. If it were my car I'd just leave it alone, replace the rusty lines, and bleed it. I'll keep an eye on this and see if anyone knows what that cylinder is since I'd like to know myself. I've messed with the brakes on my 201 and 202 a fair bit and haven't seen anything like that.
__________________
Follow the team at:
http://www.forthesakeof.racing/
https://www.facebook.com/ForTheSakeOfRacing/

Current:
'74 450SLC
'89 190E
'95 E420

Previous:
'94 E320
'87 300E
'73 350SL
'75 450SL
'95 C36
'99 C43 55 swap
Reply With Quote
  #3  
Old 10-07-2017, 11:34 PM
Registered User
 
Join Date: Feb 2015
Location: union, nj
Posts: 105
I wish I could post a pic but won't let me on mobile...it's the cylinder that leaks but it's so hard to unscrew the brake lines from it so it stripped . I cut off the lines and removed the cylinder.

So now I need 2 new lines and this new mystery cylinder...probably costs more than my car is worth but ohh well
Attached Thumbnails
Need brake help on my 94 e320-image.jpg  
__________________
1994 e320 (Charcoal and grey) 140, 000 miles

Last edited by bru023; 10-08-2017 at 07:41 AM.
Reply With Quote
  #4  
Old 10-08-2017, 05:15 AM
optimusprime's Avatar
Trevor Hadlington
 
Join Date: May 2014
Location: Worcestershire in England
Posts: 1,295
What model are we talking about ? I am thinking a W124 i dont know what it is .

/
Reply With Quote
  #5  
Old 10-08-2017, 07:37 AM
Registered User
 
Join Date: Feb 2015
Location: union, nj
Posts: 105
Here is a photo it's mounted behind the wheel well driver side
Attached Thumbnails
Need brake help on my 94 e320-image.jpg  
__________________
1994 e320 (Charcoal and grey) 140, 000 miles
Reply With Quote
  #6  
Old 10-08-2017, 09:07 AM
Registered User
 
Join Date: Jan 2012
Posts: 7,515
The sticker says, Compressed Gas, that makes it an accumulator. I'm guessing it smooths out ABS operation but don't quote me in that.

In any event, don't drive with just rear brakes. This is very dangerous as braking is less than 50 % of a properly operating car.
Reply With Quote
  #7  
Old 10-08-2017, 10:45 AM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,794
It's an ASR accumulator - http://www.ebay.com/itm/202021003918

Is there a similar device on the passenger side?

Sixto
98 E320s sedan and wagon

Last edited by sixto; 10-08-2017 at 10:57 AM.
Reply With Quote
  #8  
Old 10-08-2017, 10:50 AM
gsxr's Avatar
Unbanned...?
 
Join Date: Aug 2001
Location: USA
Posts: 8,021
It's an accumulator for the (optional) ASR system. You need to replace the leaking accumulator, replace the brake lines you cut, and then pressure bleed the entire system including the SP port on the ASR pump to get all four brake calipers functioning properly again. Hopefully nothing else was messed up when attempting to drive without the accumulator in place.

See FSM job 42-0800, section F, for an explanation of the accumulator function:
http://www.w124-zone.com/downloads/MB%20CD/W124/w124CD2/Program/Chassis/42-0800.pdf#page=28

Brake bleeding procedure is maintenance job 4280, section B, and MUST be done via pressure bleed (cannot pump the brake pedal):
http://www.w124-zone.com/downloads/MB%20CD/W124/w124CD1/Program/Maintenance/94_95/4280.pdf


Attached Thumbnails
Need brake help on my 94 e320-accum.jpg  
__________________
Dave M.
Boise, ID

1997 E420 - 155kmi (Bugeyes)
1994 E420 - 145kmi (Blondie)
1993 500E - 193kmi (Lollipop)
1992 400E - 189kmi (Stinky Dirty)
Check out my website photos, documents, and movies!
Reply With Quote
  #9  
Old 10-09-2017, 10:49 AM
Registered User
 
Join Date: Feb 2015
Location: union, nj
Posts: 105
Thank you it sounds costly. Plus getting the brake lines

Got to search junk yards

Ty for the help

__________________
1994 e320 (Charcoal and grey) 140, 000 miles
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 12:59 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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