full brake fluid flush / replacement with VDC - Subaru Outback - Subaru Outback Forums
 
LinkBack Thread Tools Rate Thread
post #1 of 9 (permalink) Old 11-19-2009, 07:12 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
full brake fluid flush / replacement with VDC

It's time to flush the brake fluid on my 2001 OBW VDC...

...and I'm a detail-oriented kinda guy........so I want to flush ALL the brake fluid from the system, including the old stuff in the VDC unit valves & chambers & reservoirs...

So I need to ask the brake gurus in this forum:

1) Should I run the VDC sequence control (pressure increase) or the ABS sequence control (pressure decrease) or both?

2) How long / how many cycles should I run the sequence control?

3) When should I run sequence control? After a partial bleed? During bleeding? After a full flush?

I'm leaning towards partial flush + VDC sequence control + full flush, but I'm not sure. Are there any expert Suby mechanics here who could dispense their wisdom?

Thanks very much in advance...

-Jeff
driveby is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 11-19-2009, 07:52 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,298
Feedback Score: 0 reviews
Send a message via AIM to nipper
www.endwrench.com in the archives covers brake flush/bleeding procedure.


nipper
nipper is offline  
post #3 of 9 (permalink) Old 11-19-2009, 07:56 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
Quote:
Originally posted by nipper
www.endwrench.com in the archives covers brake flush/bleeding procedure.
I've read the endwrench articles already. They cover some of the stuff from the service manual, but they don't answer these questions. Unless I missed something...

-Jeff
driveby is offline  
post #4 of 9 (permalink) Old 11-19-2009, 08:02 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,298
Feedback Score: 0 reviews
Send a message via AIM to nipper
http://endwrench.com/images/pdfs/BrakeFluidSumm02.pdf

Is it just me. or does that contradict itself in spots?


nipper
nipper is offline  
post #5 of 9 (permalink) Old 11-19-2009, 08:09 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
To clarify...

1) The Winter 2001 "Brake System Flushing & Bleeding" article mentions a detailed procedure for TCS systems, which I think (??) predate my VDC system??

2) The Summer 2002 "Brake Fluid Change" article mentions ABS sequence control to test the ABS unit (with a pressure gauge) after you have changed the fluid.

...but neither of them talks about how to flush the ABS or VDC control unit valves/chambers/reservoir.

I also took a look at Subaru's training module for brake systems. No luck.

Is there another article that I should read? Or, should I just forget about this and let the VDC unit stew in its old juices?

Thanks for your help!

-Jeff
driveby is offline  
post #6 of 9 (permalink) Old 11-19-2009, 08:15 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,298
Feedback Score: 0 reviews
Send a message via AIM to nipper
I'm getting attacked by flying pigs, so i will let someone else answer. I would just do a normal bleed/flush starting at the closest wheel first.


someone send chicken soup.

**** pigs with wings.




nipper
nipper is offline  
post #7 of 9 (permalink) Old 11-19-2009, 08:39 PM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
Hehe...I hear ya. Still dreaming of a world without flying pigs.

It all changes so sloooowly. Maybe in 2 or 3 more generations. I hope we live to see it.

-Jeff
driveby is offline  
post #8 of 9 (permalink) Old 11-19-2009, 08:59 PM
Super Moderator
 
Join Date: Jan 2007
Location: Oceanside, NY
Car: 2005 OBW 2.5L, 1989 Subaru Justy, RIP Blu
Posts: 7,298
Feedback Score: 0 reviews
Send a message via AIM to nipper
Quote:
Originally posted by driveby
Hehe...I hear ya. Still dreaming of a world without flying pigs.

It all changes so sloooowly. Maybe in 2 or 3 more generations. I hope we live to see it.

-Jeff
i wonder what is next *cough cough* the buffalo flu, or did we de-wing all of them.


(apologies if i sounded irked before, i really feel like biomass)
nipper is offline  
post #9 of 9 (permalink) Old 11-21-2009, 11:57 AM Thread Starter
Registered User
 
driveby's Avatar
 
Join Date: Oct 2009
Location: sunny california
Car: 2001 OBW H6 VDC
Posts: 828
Feedback Score: 0 reviews
bump!

Has anyone out there done a full ABS/VDC flush like this?

No buffalo, please.

-Jeff
driveby is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Rate This Thread
Rate This Thread:



Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome