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  #1  
Old 05-26-2019, 04:46 PM
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Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,483
W124 Electrical Issue

1991 300D. All of a sudden, items on several different circuits stopped working: wiper, front windows, rear windows, sunroof. Perhaps other items I have not noticed. Is there something common to these different circuits that I need to check? Fuses are fine.

Thanks!
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06 E320 CDI "Benson", Platinum Blue, 176k mi
06 E320 CDI "Rutherford", Black, 146k mi
91 300D "Otis", Smoke Silver, 129k mi
98 E300 "Murray", Silver, 129k mi, Stage 2 Rocketchip chip tuned, under son's care, getting EXPENSIVE!

Twelve other MB's owned and sold
2002 Honda Odyssey 255k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife
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  #2  
Old 05-26-2019, 05:26 PM
jay_bob's Avatar
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Location: Columbia, SC
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Check the convenience control module under left rear seat. This has control of the windows and sunroof.

Wipers are on fuse 2, which is the same fuse that powers the convenience module.
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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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  #3  
Old 05-26-2019, 07:17 PM
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Location: Barrington, RI
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Quote:
Originally Posted by jay_bob View Post
Check the convenience control module under left rear seat. This has control of the windows and sunroof.

Wipers are on fuse 2, which is the same fuse that powers the convenience module.
Turns out it was a badly oxidized fuse 2....thanks for pointing me in the right direction, Jaybob.

Finally the incentive I needed to replace all those 28 year old fuses!
__________________
06 E320 CDI "Benson", Platinum Blue, 176k mi
06 E320 CDI "Rutherford", Black, 146k mi
91 300D "Otis", Smoke Silver, 129k mi
98 E300 "Murray", Silver, 129k mi, Stage 2 Rocketchip chip tuned, under son's care, getting EXPENSIVE!

Twelve other MB's owned and sold
2002 Honda Odyssey 255k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife

Last edited by shertex; 05-26-2019 at 07:57 PM.
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  #4  
Old 05-26-2019, 11:07 PM
jay_bob's Avatar
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Join Date: Oct 2011
Location: Columbia, SC
Posts: 3,428
Yes those old 'bullet' fuses are notorious for looking good but failing at the ends. Had more than a few fall apart in my hand upon removal.
__________________
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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  #5  
Old 05-27-2019, 06:27 AM
optimusprime's Avatar
Trevor Hadlington
 
Join Date: May 2014
Location: Worcestershire in England
Posts: 1,207
Purchase ceramic and brass fuses from ships chandlers . And take a picture of the fuses in the fuse box ,do this before you pull them out, because some items are not fitted in your car and those fuse holders will not be used .I made a small fuse removal tool .You will find that they will be hard to remove, and also to refit with out one.This makes removal and re fitting easy .
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  #6  
Old 05-27-2019, 09:35 AM
jay_bob's Avatar
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Join Date: Oct 2011
Location: Columbia, SC
Posts: 3,428
Good idea on the picture, but also look at the factory fuse chart in the lid, and make sure someone did not put the wrong rating fuses in. I found that when I got my W124.
__________________
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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