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Old 05-14-2019, 12:39 AM
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1987 300 TD - Convenience Control Module Location

1987 300 TD (124.193) - looking for the location of the convenience control module (N57) that controls the power windows and sunroof.

On the W124 four door sedan, it is located under the left side of the rear bench seat.

Is it in the same location on the 124 wagon (estate)?

Can't seem to access the electrical component locator in the Electrical Troubleshooting Manual for this vehicle at STAR Tekinfo.
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Old 05-14-2019, 03:47 AM
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I believe that the location changed in the early 124's. It was originally under the floor mat (at least in the sedan), possibly rear left, but being a terrible location for electronics due to moisture it was moved under the rear seat.

Correction! It was the heated seat module that was initially located under the carpet and later moved under the rear seat, not the convenience module.

Last edited by Rick76; 05-16-2019 at 05:09 PM. Reason: Correction
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Old 05-14-2019, 11:54 AM
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lh side under rear seat cushion. according to alldata. chuck.
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Old 05-16-2019, 07:19 AM
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87 300TD does not have the convenience control module. Windows and sunroof are just straight wired from switches to motors. Convenience control did not appear until 90 or 91 IIRC.
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Old 05-16-2019, 10:20 AM
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Quote:
Originally Posted by jay_bob View Post
87 300TD does not have the convenience control module. Windows and sunroof are just straight wired from switches to motors. Convenience control did not appear until 90 or 91 IIRC.
that's what i thought but my memory on those is thin. looked it up in alldata. could be they're wrong.
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Old 05-16-2019, 10:54 AM
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Try here for factory manuals for the 124...

http://w124-zone.com/downloads/MB%20CD/W124/Main.html
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The OM 642/722.9 powered family
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
2008 ML320 CDI (Older sonís DD)
2008 E320 Bluetec (Younger son's DD)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
----------
gone but living on
1983 240D (body to greazzer, engine to t walgamuth)
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Old 05-25-2019, 10:01 AM
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Quote:
Originally Posted by jay_bob View Post
87 300TD does not have the convenience control module. Windows and sunroof are just straight wired from switches to motors. Convenience control did not appear until 90 or 91 IIRC.
Agreed, I have yet to find one in my 87td. There are no convenience features in the 87, one touch operation, or auto close features just controls up/down straight wired. If you have operation issues, check fuses, switch and wiring. Many times the switches are gummed up or the door pass through wiring is frayed
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Old 05-27-2019, 06:40 AM
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Model 124 Maintenance Manual Index . google this for a free manual . It will show in there .
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