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 11-29-2008, 12:19 AM
Registered User
 
Join Date: Nov 2008
Posts: 7
W140 ASR/ABS Light On

Recently my ASR/ABS light came on.

I have read the forums and have replaced the battery, the brake light switch twice, and cleaned the wheel sensors. I also replaced the high mounted brake light bulb.

The ASR/ABS light comes on primarily after cruise control has been angaged.

The ASR/ABS light also has begun coming on at speeds below 55 mph but does not come on at intersate speeds even when the cruise control is not on.

The ASR/ABD light goes out after the car is stopped and started.

The car does not go into limp home mode but runs fine. Also, the cruise and everything else works fine except for the steering becming very heavy when the ASR/ABS light comes on.

Both throttle actuators and the wiring harness was replaced about three years ago.

Any suggestions?
Reply With Quote
  #2  
Old 11-29-2008, 04:06 AM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
Check for equal PSI and tire size..........
__________________
A Dalton
Reply With Quote
  #3  
Old 11-29-2008, 07:54 AM
Registered User
 
Join Date: Nov 2008
Posts: 7
ASR/ABS Light Check Tire Reply

Thanks for the reply Mr. Dalton:

I checked the tire pressure and all four have about 35 pounds of pressure. The tires are identical. The rear tires are newer but are worn much more than the front.
Reply With Quote
  #4  
Old 11-29-2008, 08:48 AM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
What year and model? You've written this exactly as if you have a combined ASR/ABS light, which I don't think is true.
Reply With Quote
  #5  
Old 11-29-2008, 06:44 PM
Registered User
 
Join Date: Nov 2008
Posts: 7
ASR/ABS Lights Model Reply

Mine is a 1994 W140, S600.

I do have two lights, an ASR and an ABS light but they come on at the same time when the malfunction occurs and go off at the same time as well.

Thanks!
Reply With Quote
  #6  
Old 11-29-2008, 07:38 PM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
Have you read the fault codes on the 38 pin connector - especially pin 7? That would be a good next step.
Reply With Quote
  #7  
Old 12-13-2008, 03:12 PM
Registered User
 
Join Date: Dec 2008
Location: Granville, OH
Posts: 1
Hello all, I'm a first time poster, but I've been a lurker here for years

Any word on the cause? My 94 S600 does exactly the same thing.
Reply With Quote
  #8  
Old 01-26-2009, 03:42 PM
Registered User
 
Join Date: Jan 2009
Posts: 1
I have the same problem with my 1994 S500 W140. Both the ABS and ASR lights stay on and do not go out at anytime until the key is turned off. The problem appeared when I made a hard emergency stop. I have replaced the sensors and pads. Can the problem be fixed with a reset? How?
Reply With Quote
  #9  
Old 01-27-2009, 03:45 AM
zcc's Avatar
zcc zcc is offline
Registered User
 
Join Date: Nov 2005
Location: Kuwait
Posts: 610
I'd recommend checking both brake switch and brake bulbs from the correct Watts.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
Reply With Quote
  #10  
Old 01-29-2009, 01:33 AM
Western140's Avatar
Registered User
 
Join Date: Apr 2006
Posts: 11
I'm having the same problem with my 1998 S420. I actually had both the ABS and ASR lights come on and stay on, even after engine restart, a few months ago. I had the brake light switch replaced, and that fixed it for a while, but recently the problem has returned.

Now, the ABS and ASR lights come on most often when I am just feathering the brake pedal, such as in stop and go traffic on the freeway, when I feather the brake and then let off. Or, also when I'm parking it happens a lot. Now, however, the lights are reset after engine restart.

Is it possible that I just need to get another brake light switch?
__________________
Mark S.
Seattle

1998 Mercedes S420, Smoke Silver, 138K
Reply With Quote
  #11  
Old 01-29-2009, 05:11 PM
zcc's Avatar
zcc zcc is offline
Registered User
 
Join Date: Nov 2005
Location: Kuwait
Posts: 610
Exclamation

Quote:
Originally Posted by Western140 View Post
Is it possible that I just need to get another brake light switch?
I think you need first to pull the error codes and see what's going on.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D

380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current


http://search.ebay.com/_W0QQsassZkhazenzcc
Reply With Quote
  #12  
Old 02-03-2009, 02:11 PM
Western140's Avatar
Registered User
 
Join Date: Apr 2006
Posts: 11
I took my car to my indy last week for the ASR and ABS warning light problem. He said there was an error code pointing to the brake light switch being faulty, so he replaced it again and just charged me $17 for the part, which was nice. I have the one he took out (which he had installed just six months ago) and it's already partially jammed in the closed position, and it doesn't move freely at all...very sticky jerky movement in the switch. I can't believe such a small simple part would ever fail, much less twice in six months. Anyway, hopefully the fix will last longer this time. The BAS/ASR and ABS lights haven't come on since the brake light switch was replaced, and it used to happen most days, so I think that was the problem.
__________________
Mark S.
Seattle

1998 Mercedes S420, Smoke Silver, 138K
Reply With Quote
  #13  
Old 02-03-2009, 02:21 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
It is best to replace with a switch directly from Benz. All others have a high fail rate.
__________________
A Dalton
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 04:53 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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