Left Low Beam - Not working - Mercedes-Benz Forum
 
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post #1 of 3 (permalink) Old 01-06-2013, 05:55 PM Thread Starter
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Date registered: Dec 2009
Vehicle: 1991 300D 2.5TD 320.000 km , 1991 300E 2.6 165.000 Km
Location: Ontario, Canada
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(Thread Starter)
Left Low Beam - Not working

Hello,

I'm looking for some advice on resolving my issue with the left low beam.

1991 W124, 300D, 2.5 TD
Using Euro Headlights;
Bulb,I believe H4-9003;
High Beam Works;
Low Beam doesn't;
Right Side both beams work fine.

What I have done:

1- Verified bulb and works fine, low and high beams;
2- verified the bulb connector for corrosion, seems fine;
3- verified fuses, removed, cleaned, cleaned connectors, replaced fuse (copper) still no low beam;
4- Tested with a test lamp at the bulb connector, ground + white wire , lamp on;
5- Tested ground + yellow wire no power;
6- Verified voltage at D 13 fuse : 11.46
7- Verified voltage on D 14 (right, working headlight) : 12.26

Need help to fix this low beam. Any ideas? Thank you and happy new year!
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post #2 of 3 (permalink) Old 01-06-2013, 10:08 PM
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Date registered: Feb 2011
Vehicle: 91 500SL 37k,90 300SE sold, 91 300E sold , 92 300E137k ,02 Kia Sedona ,I know..... its a Mini van.
Location: SoCal
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If bulb is fine? I would whip out your trusty VOM and start checking voltages at connector then work your way back to power source,put your spec's on and look up the wiring schematic in the DIY section and you will fix it! luck


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post #3 of 3 (permalink) Old 11-04-2015, 03:28 PM
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Date registered: Dec 2010
Vehicle: W124 1986 230E & 1991 300E
Location: Trinidad & Tobago WI
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Hello MB 2.5TD - I have the exact problem on my 300E. Can you advised if yours was resolved and if so, please let me know what I should do!
Thanks much
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