ABS/DSC Light Issue - Page 2 - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

 4Likes
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #11 of 21 Old 15th April 2019, 02:21 PM
Rosie
Member, Sport: Off DSC: On (>50 posts)
 
Join Date: Nov 2017
Location: Sydney
Posts: 71
Thanks: 3
Thanked 23 Times in 20 Posts
Quote:
Originally Posted by espritv8 View Post
Well, that's a real pain. I have INPA and BMW scanner. Wish those 2 could at least do that simple task.

Under the ABS menu in INPA there's options to open the system valves and activate pump. There is no procedure to get the air out using these options?



I don't have DIS and really hope to avoid dealing with it. It has been a pain already to have the INPA and bmw scanner running on my laptop.


Yeah, so do I.
INPA only activates the pump and valves individually. If it does get the air out of the system itís probably more by luck than design.
The DIS procedure runs the pump and activates the valves in a specific sequence to purge the air out of the DSC Hydraulic unit and into the lines to then be bled out of the calipers.

Iíve used DIS on an E39 with a F&R Brembo GT BBK - the brakes felt good before, but some air was expelled and they became mind blowingly awesome!
Rosie is offline  
Sponsored Links
Advertisement
 
post #12 of 21 Old 15th April 2019, 03:44 PM Thread Starter
espritv8
Member
 
Join Date: Feb 2016
Posts: 35
Thanks: 6
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by Rosie View Post
Yeah, so do I.
INPA only activates the pump and valves individually. If it does get the air out of the system itís probably more by luck than design.
The DIS procedure runs the pump and activates the valves in a specific sequence to purge the air out of the DSC Hydraulic unit and into the lines to then be bled out of the calipers.

Iíve used DIS on an E39 with a F&R Brembo GT BBK - the brakes felt good before, but some air was expelled and they became mind blowingly awesome!
Ok thanks, I'll try to get then... found it at around 20$ on ebay.
espritv8 is offline  
post #13 of 21 Old 15th April 2019, 07:53 PM Thread Starter
espritv8
Member
 
Join Date: Feb 2016
Posts: 35
Thanks: 6
Thanked 0 Times in 0 Posts
I've ran INPA and found the pressure sensor testing.

Numbers go up when pressure is applied so I guess the pressure sensor is fine. Weird thing though, brake switch stays at 1-1.2v even if no pressure is applied. Normal?
espritv8 is offline  
 
post #14 of 21 Old 15th April 2019, 08:01 PM Thread Starter
espritv8
Member
 
Join Date: Feb 2016
Posts: 35
Thanks: 6
Thanked 0 Times in 0 Posts
Also while connected to INPA, I would hear a clicking noise from the front end and lights will turn on or off at the same time. Wonder if that's normal too?!?!

Last edited by espritv8; 15th April 2019 at 08:03 PM.
espritv8 is offline  
post #15 of 21 Old 15th April 2019, 08:47 PM
josiahg52
M5 Guru (>2000 posts)
 
josiahg52's Avatar
 
Join Date: Nov 2008
Location: New England
Posts: 3,716
Thanks: 1,251
Thanked 756 Times in 615 Posts
Quote:
Originally Posted by espritv8 View Post
Also while connected to INPA, I would hear a clicking noise from the front end and lights will turn on or off at the same time. Wonder if that's normal too?!?!
Can you post a photo of your cluster with the warning lights on?

2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim
josiahg52 is online now  
post #16 of 21 Old 16th April 2019, 05:43 AM
Sailor24
M5 Expert (>4000)
 
Sailor24's Avatar
 
Join Date: Oct 2010
Location: Cobourg Ont
Age: 57
Posts: 9,671
Thanks: 985
Thanked 1,964 Times in 1,648 Posts
It is likely the ABS/DSC module. If there are 50 ABS issues reported 49 relate to a failure in that module. The smart thing to do is remove the module and send it out for testing and even if it tests fine have them go over it and redo some common solder issues and you won't have an issue in the future. Even if you do they will fix it for free depending where you send it.Frankly if you start messing with that system and you don't know what you are doing you will introduce air into the system and then... well just read all the threads on getting air out of the ABS, not pleasant.
Sailor24 is online now  
post #17 of 21 Old 16th April 2019, 06:08 AM
Rosie
Member, Sport: Off DSC: On (>50 posts)
 
Join Date: Nov 2017
Location: Sydney
Posts: 71
Thanks: 3
Thanked 23 Times in 20 Posts
Quote:
Originally Posted by Sailor24 View Post
It is likely the ABS/DSC module. If there are 50 ABS issues reported 49 relate to a failure in that module. The smart thing to do is remove the module and send it out for testing and even if it tests fine have them go over it and redo some common solder issues and you won't have an issue in the future. Even if you do they will fix it for free depending where you send it.Frankly if you start messing with that system and you don't know what you are doing you will introduce air into the system and then... well just read all the threads on getting air out of the ABS, not pleasant.


Very true and well said.
Rosie is offline  
post #18 of 21 Old 18th April 2019, 01:52 AM Thread Starter
espritv8
Member
 
Join Date: Feb 2016
Posts: 35
Thanks: 6
Thanked 0 Times in 0 Posts
espritv8 is offline  
post #19 of 21 Old 18th April 2019, 01:57 AM Thread Starter
espritv8
Member
 
Join Date: Feb 2016
Posts: 35
Thanks: 6
Thanked 0 Times in 0 Posts
The reason why I suspect air in the system is that it was working fine with no lights before the fluid flush.

Or maybe it's that gooey stuff that got moved around in the system and interferes with the ABS???

I'll try another flush and bleed procedure after getting DIS, and then will send the ABS module for repair if not working. I wish there was just a way to diagnose the issue first.
espritv8 is offline  
post #20 of 21 Old 18th April 2019, 04:33 PM
josiahg52
M5 Guru (>2000 posts)
 
josiahg52's Avatar
 
Join Date: Nov 2008
Location: New England
Posts: 3,716
Thanks: 1,251
Thanked 756 Times in 615 Posts
Huh, that's what I thought. The lights are different than the US cars. Must be some obscure respective transportation department's requirement.

I think it would be worth it to get your DSC module refurbished. In the US there is Module Masters.

2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim
josiahg52 is online now  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 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:
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
BMW dealership couldn't resolve a check engine light after 5 visits over 3 months... Manny G. F10 M5 Discussion 0 13th December 2018 08:05 PM
Replacing license plate light bulb? Wright E39 M5 and E52 Z8 Discussion 58 29th September 2015 08:07 PM
Cluster/Indicator light issue. RJ2k10 E39 M5 and E52 Z8 Discussion 11 12th August 2014 05:15 PM
Check Licplate light!?!? Anger vent Wright E39 M5 and E52 Z8 Discussion 15 19th September 2010 04:44 AM
(( ! )) DBC Warning Light, Help needed slunk_23 E39 M5 and E52 Z8 Discussion 2 19th December 2008 04:08 PM

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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