SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: Self-Leveling Device

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Old Feb 5, 2021 | 01:24 PM
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bstout's Avatar
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From: Arlington, TX USA
1998 SL500
Self-Leveling Device

After having some work completed by a shop on our 1998 SL500, I noticed that the headlights no longer moved up and down when we started the car. A little investigative work identified that the "Front Regulating Rod" was missing!!! Have not been able to find replacement parts with online searches. Any suggestions were to go or what to do??



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Old Feb 6, 2021 | 10:47 AM
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1997 MB SL600
That's an old ADS diagram for the original setup.

The newer diagram for ADS II would show the flat linkage connecting to a electronic sensor (not a height valve).

Tell your dealership what you need and they will get the right part. The newer flat linkage costs around $50.
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Old Feb 6, 2021 | 02:01 PM
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MY2000 SL500
Might be an idea to go back to the shop where the work was done. The missing part may be laying on somebody's work bench!
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Old Feb 8, 2021 | 12:58 PM
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1998 SL500
That is where the problem is...been on order since October with the MB dealer here in Arlington, TX. If I could find a diagram with specifications, I would try to fabricate something. I understand that what is missing is just the ROD itself. That the micro-switch is there. The drawing is what I find when I search. Maybe I am not asking Google the right words!!
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Old Feb 8, 2021 | 01:00 PM
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From: Arlington, TX USA
1998 SL500
Originally Posted by pjacobs55
Might be an idea to go back to the shop where the work was done. The missing part may be laying on somebody's work bench!
Yes, the first thing I did was go back to the first shop and ask and look for myself. No such luck!! Thank you for the suggestion though.
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Old Feb 8, 2021 | 01:58 PM
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From: Lutz, FL
1997 MB SL600
Try this:

129-320-01-32

https://www.ebay.com/c/1022081141
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Old Feb 16, 2021 | 07:58 PM
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1998 SL500
This appears to be the same part as the one I was using from older diagram. Do you have part number for the ADS II link rod for microswitch verse value??
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Old Feb 16, 2021 | 10:38 PM
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From: Lutz, FL
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https://www.pelicanparts.com/More_In...-320-01-32-MBZ

When you order it for a newer R129 I think you get the newer link.

As far as I know, this is the link. It looks like my 2 links.
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