Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 3 Series > E30 (1983 - 1991)
User Name

Welcome to!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Thread Tools Rate Thread Display Modes
Old 03-02-2011, 12:39 AM   #1
2nd Gear Member
Join Date: Nov 2009
Location: Quebec
Posts: 76
Brake fluid leak

Its been a couple weeks that my brake fluid light flashes when i drive around and tonight i was driving and my brake pedal sudently had no resistance in it so i cheked my brake fluid and it was empty and it was full 10 minutes earlier so i filled it up and looked under as someone pressed the brake pedal and it was leaking a lot from where the diff is ! So im guessing one of my hoses broke ? How hard are they tochange ?

mahniak is offline   Reply With Quote
Old 03-02-2011, 01:12 AM   #2
Bullet Ride
Cars in Perpetual Repair
Bullet Ride's Avatar
Join Date: Nov 2007
Location: Guelph
Posts: 5,995
If it's a burst rubber line, easy fix. If it's a burst hard line on the trailing arm, easy fix. If it's a burst hard line coming from the distribution block... pain in the ass since it most likely burst due to corrosion. All of it is tucked up above the rear subframe and is hard to get at well enough (to not strip corroded fasteners) without dropping the subframe.
Bullet Ride is offline   Reply With Quote
Old 03-02-2011, 08:10 AM   #3
6th Gear Member
Join Date: Apr 2010
Location: Toronto
Posts: 1,888
Hope you have a crow bar to rip the T-fitting from the frame and also have lots of time to run new lines. Best thing is to run a new line from front to back.
HavocSteve is offline   Reply With Quote
Old 03-02-2011, 08:47 AM   #4
Parts hoarding partner...
Ceeker's Avatar
Join Date: Nov 2007
Location: Toronto
Posts: 3,428
if the reservoir rear half is empty then you most probably have a rear brake line leak. most common is at the junction point or distribution block which sits just above the differential. pain to get to and fix. look for the wet spot..LOL.. trace it and go from there. don't tear the distribution block from the frame. that's a butcher job!!! People re-locate them after removing it. But, what's the point really? it took 20 years to rot out. Do you think it's going to happen again in your life time with the same car? just spray lots of rust proofing and it won't happen again.

I think I've had 18 bmw's in 6 years.

1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.
latest addition as of 2013-Gold 87-325is auto! it's a keeper!
KEEPER 88 5sp Vert 2016
Ceeker is offline   Reply With Quote
Old 03-02-2011, 02:51 PM   #5
2nd Gear Member
Join Date: Nov 2009
Location: Quebec
Posts: 76
The leak is coming right from over the diff so i guess it will be a pain te fix ! So what exactly do i need to buy ? Would it be easier to get another distribution blcok and relocate it to pass the lines somwhere else ? If so does it have to be an e30 distribution block because i have a e36 which has already no diff so i guess it would be easu to remove ?
mahniak is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Forum Jump

All times are GMT -4. The time now is 09:58 PM.

Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Maxbimmer Copyright 2001 - 2018