Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E38 (1995 - 2001)

7 Series - E38 (1995 - 2001)

Reply
 
Thread Tools Display Modes
  #1  
Old 12-17-2012, 08:56 AM
kofoedp kofoedp is offline
Registered User
Location: vancouver
 
Join Date: Sep 2012
Posts: 3
Mein Auto: 2001 740i
740i ABS-DSC etc.

ABS DSC lights are on, speedo not working and temp guage at max. Leave the car for a day then all is normal. After it warms up, the problem returns. Help.
Reply With Quote
Ads by Google
  #2  
Old 12-22-2012, 01:56 PM
a1exander a1exander is offline
Registered User
Location: South Africa
 
Join Date: Dec 2012
Posts: 2
Mein Auto: e38-e30-e36
The ABS and DSC are influenced by the speedometer.
The issue of the temp gauge being full to the right and the speedo not working indicates a cluster issue maybe with earthing or the internals.
I would try and diagnose the instrument cluster first.
Reply With Quote
  #3  
Old 12-23-2012, 11:01 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 20,349
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by a1exander View Post
The ABS and DSC are influenced by the speedometer.
The wheel speed sensors influence everything ABS & DSC, so I'd do the 15 minute quick test of the wheel speed sensors pretty early on in the OP's diagnosis:
- ABS DSC diagnostic DIY
__________________
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
  #4  
Old 12-25-2012, 03:11 PM
First740i First740i is offline
Officially Welcomed to the 'Fest
Location: michigan
 
Join Date: Mar 2011
Posts: 291
Mein Auto: 740i
I had the exact problem it was my right rear wheel speed sensor. 50 bucks. Not hard to fix but not easy. Takes some finesse to get out it its a old rusty car.

Sent from my DROID4 using Bimmer App
Reply With Quote
  #5  
Old 12-26-2012, 05:48 PM
E36 Phantom's Avatar
E36 Phantom E36 Phantom is online now
I Am The Machine
Location: Somewhere Between The Valley & The Bay
 
Join Date: Apr 2007
Posts: 20,362
Mein Auto: Dreier, Fünfer & Siebener
Quote:
Originally Posted by kofoedp View Post
ABS DSC lights are on, speedo not working and temp guage at max. Leave the car for a day then all is normal. After it warms up, the problem returns. Help.
My 5er is doing the exact same thing, accompanied by transmission failsafe mode. Sent my ABS module to module masters and they said it was damaged beyond repair, so my assumption is you'll need a new module. I haven't bothered to put one in yet on the 5.

Sent from my LG Revolution 4G using BimmerApp
__________________
// Chad // 2001 BMW 740i M-Sport // 2002 Lexus LX470 //
// 2009 Kawasaki Concours 14 // 2000 Kawasaki Concours 1000 //
// 1998 Honda CBR900RR // 2006 Kawasaki Ninja 250 //



Quote:
Originally Posted by SlimKlim View Post
You're a derbanana
Reply With Quote
  #6  
Old 12-29-2012, 11:30 AM
mike213735 mike213735 is offline
Registered User
Location: Reading, Berkshire, UK
 
Join Date: Dec 2012
Posts: 3
Mein Auto: 2000 728i Sport
I had a similar problem. No speedo, no cruise control, no analogue MPG gauge.

Tim put another ABS/DSC module on and everything works now. The module does have other faults though, so I'll be sending my unit off for repair.

Thanks
Mike
Reply With Quote
  #7  
Old 12-29-2012, 03:25 PM
setconstr setconstr is offline
Officially Welcomed to the 'Fest
Location: los angeles
 
Join Date: Feb 2008
Posts: 404
Mein Auto: 2001 740i sport 2006 m6
re

The speed sensors get dirty and their easy to clean i bought a little wire brush like 3/8 diameter so i could clean the hole out. I used brake cleaning fluid and it just takes alittle time to jack the car up and remove the wheels for easy access but you can look for frayed wires and its a good time to clean the inside of the wheels ..........Here is a good write-up
http://forums.bimmerforums.com/forum....php?t=1815681
__________________

Last edited by setconstr; 12-29-2012 at 03:27 PM.
Reply With Quote
  #8  
Old 12-29-2012, 10:19 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 20,349
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by E36 Phantom View Post
my assumption is you'll need a new module. I haven't bothered to put one in yet on the 5.
Here are all known replacement options:
- What are all known options when your ABS control module is bad (1)

Quote:
Originally Posted by setconstr View Post
Nice find. I'll add it to the canonical set of links for the trifecta:

- How to diagnose the BMW amber ABS BRAKE DSC/ASC trifecta or bifecta (1) & what are all known options when your ABS control module is bad (1) & Quick99Si's explanation of why the 10-minute wheel speed sensor diode-action quick test doesn't always work, especially on brand new non-OEM wheel speed sensors (1) (2) & explanations by 540iman as to why the fancy diagnostic tools very often (extremely often, like almost all the time) fail to properly diagnose the trifecta or bifecta (1) (2) (3) (4) (5) (6) & where to get the fancy schmancy diagnostic tools for free once you're aware of these limitations (1) & an ABS BRAKE DSC trifecta brake pressure sensor diagnostic DIY (1) & how to test and replace the steering angle sensor (1)
__________________
Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E38 (1995 - 2001)
Today's Posts Search
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 Off



Forum Jump


All times are GMT -7. The time now is 03:55 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms