R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Headlight Out

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Old Oct 10, 2016 | 02:23 PM
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Noir230's Avatar
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1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400
Headlight Out

The right low beam headlight is out on my 2009 R350. While changing the bulb, I saw that the old one is good, but replaced it anyway - it didn't solve the problem. I checked fuses 54, 55 and 112; they are all good. I used a multimeter and found no voltage at the socket. I tried searching on the site and couldn't find an answer to my problem. Can anyone help or direct me to a posting that I may have missed? Thank you in advance.
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Old Oct 10, 2016 | 02:27 PM
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marc hanna's Avatar
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2023 GLK250, 1987 560SL
Do you have factory Xenon lights? Are your high beams working?
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Old Oct 10, 2016 | 05:56 PM
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1992 400E, 1997 SL500, 2007 SL55 AMG, 2016 E400
Thanks for the reply

Originally Posted by marc hanna
Do you have factory Xenon lights? Are your high beams working?
​​​​​​​I have H7 halogen bulbs and, yes, the high beams are working. Only the right side low beam is inoperative.

Last edited by Noir230; Oct 10, 2016 at 05:59 PM.
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Old Oct 10, 2016 | 07:20 PM
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marc hanna's Avatar
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From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
Did you test the fuses with the multimeter also? I don't have a fuse chart with me, so I can't be of much help there.

My guess, because it's only the one side giving you the problem, and only the low beam, that you have a damaged wire or a corroded connection in the headlight assembly. I would start with the socket itself, maybe one of the leads have broken off. Did you test the hot and ground wires separately?
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