91 500SL Convertible Top Issues - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 07-27-2011, 10:06 PM Thread Starter
BenzWorld Newbie
Date registered: Apr 2011
Vehicle: 1991 500SL
Posts: 2
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
91 500SL Convertible Top Issues

I have a '91 500SL that seems to be having some issues with the top not thinking it is closed. I have checked the threads on this forum and I have not really seen one that address what I am experiencing, so let me start with what I have done.

The issue:
I had the hard-top on all winter/most of spring (Seattle Weather Sucks), and when I pulled the hard-top off, and when closing the soft top the red top button blinks and dings when you drive. However, when the top is closed and the vehicle not operational for a few hours I do not get these errors. It is only when the top is put up when the vehicle is "hot" (for lack of a better term) that the error occurs.

What I have done:
I have replaced the car battery because the last time I was at the local dealership they indicated that it needed replacing. I left it with the dealership as well to trouble-shoot the issue, 4 hrs labor at $140/hr., they believe that it is the Top Module 1298200097, but "are not really sure." The lack of confidence in trouble-shooting the issue makes me tentative throw $ after $ to educate the Mercedes Techs until they find the real issue.

I am not 100% convinced that this is the issue. They say they tested all of the sensors, but all were supposedly working properly and they did do a proper reset, so they claim they are good. I put the hard-top on again to see if I was going to have issues with it and did not have any issues.

I think it is a sensor issue, because I am not sure how a control module can be affected by the weight of the hard top, meaning I have no issues with errors when the hard top is on, but do when the soft top is up. I have checked all of the contacts when the soft top is up and they all are catching.

Before I spend a lot of money replacing the control module (used $900/new $2,100) I would appreciate additional insights to see if anyone else has had this type of issue and what their resolution was.
twalsh82 is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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.

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
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
1996 500SL Convertible with 59k miles Pantolima General Mercedes-Benz 5 08-30-2009 04:33 PM
500SL Convertible roof overide MB Neo W126 S,SE,SEC,SEL,SD,SDL Class 1 06-30-2009 01:13 PM
FS: Mercedes Benz 500SL Convertible Mr. William For Sale/Wanted/Trade/Giveaway 10 04-12-2009 08:06 AM
1995 500sl convertible top 1995SL500John R129 SL-Class 4 02-13-2008 11:08 AM
Convertible top on 91 mb 500sl Harvey40 General Mercedes-Benz 1 09-25-2004 07:11 AM

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


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome