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 > Mercedes-Benz SL Discussion Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-25-2007, 06:46 PM
Mike Miller's Avatar
Registered User
 
Join Date: Sep 2005
Location: Huntington Beach, CA
Posts: 276
R129 Horn Wiring

I am going to hang my stupidity out here, but I really need some advice.

My horn has not worked for some time. Today I pulled the airbag off the steering wheel expecting to see a couple wires. Maybe a disconnected wire. Instead, I found a relay. I have looked everywhere and can not see one in any technical information I have. I have called a couple indy's and they think I am smoking something funny.

Here is a picture of what I see and a diagram showing the relay circuit and the wires (by color) that are connected to it. What am I looking at and why is it there.

Have any of you looked under the airbag? What SHOULD be there? A little help from my technical buddies and maybe a monitor or two would be appreciated.

Attached Thumbnails
R129 Horn Wiring-dscn0216.jpg   R129 Horn Wiring-horn-relay-diagram.jpg  
__________________
roadkingmike@aol.com
Coast Aero Support Services, LLC
'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home
Reply With Quote
  #2  
Old 08-26-2007, 01:50 AM
Registered User
 
Join Date: Mar 2003
Location: Milwaukee Wisconsin
Posts: 1,150
That is diffinitely not OEM wiring. When the horn fails, it's often the horn that fails. That is, they get rusty inside and just stop working. Of course there are fuses and other parts which go bad too, but try putting 12V to the horn directly and hear what happens.
__________________
Resistance is Futile.
Reply With Quote
  #3  
Old 08-26-2007, 11:44 AM
Mike Miller's Avatar
Registered User
 
Join Date: Sep 2005
Location: Huntington Beach, CA
Posts: 276
Quote:
Originally Posted by tecqboy View Post
That is diffinitely not OEM wiring. When the horn fails, it's often the horn that fails. That is, they get rusty inside and just stop working. Of course there are fuses and other parts which go bad too, but try putting 12V to the horn directly and hear what happens.
Do you have a picture and diagram of OEM wiring? I would like to get rid of this set up, but I am afraid to experiment with R129 wiring. This forum is full of wiring nightmares on this car.
__________________
roadkingmike@aol.com
Coast Aero Support Services, LLC
'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home
Reply With Quote
  #4  
Old 08-27-2007, 05:14 PM
Mike Miller's Avatar
Registered User
 
Join Date: Sep 2005
Location: Huntington Beach, CA
Posts: 276
Problem solved. I ripped out all the extra jazz and just hooked the two wires to the inner and outer horm contacts. I don't need no stinking relay!

I got horns-a-plenty.

__________________
roadkingmike@aol.com
Coast Aero Support Services, LLC
'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home
Reply With Quote
Reply

Bookmarks


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 09:24 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page