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Driver side headlight out?

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Old Oct 20, 2017 | 11:02 AM
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Blackout317's Avatar
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Default Driver side headlight out?

Hey guys long time no post.

So long story short, went to flip the headlights on last night and discovered the driver side light low beam was out, no biggie just swap out the bulb. Got a replacement stuck it in and ... still no low beam. Tried a couple others and still nothing. Started digging around and noticed the high beam was still working. Thought it was a fuse for the low beam check (Well at least I thought I checked the right one.) and it was fine not blown.

Any thoughts?
 
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Old Oct 20, 2017 | 05:20 PM
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onehundred80's Avatar
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Default Re: Driver side headlight out?

Originally Posted by Blackout317;89621. M5
Hey guys long time no post.

So long story short, went to flip the headlights on last night and discovered the driver side light low beam was out, no biggie just swap out the bulb. Got a replacement stuck it in and ... still no low beam. Tried a couple others and still nothing. Started digging around and noticed the high beam was still working. Thought it was a fuse for the low beam check (Well at least I thought I checked the right one.) and it was fine not blown.

Any thoughts?
Check for power at the socket that is on the headlight, this will isolate the problem to after the socket or before the socket.
It is a tricky plug to get at, so maybe check the power coming out of the headlamp switch is an easier option, it is awkward to get to as well.
Definitely be sure that the fuse in the end of the dash is blown first though.
Check that all the bulbs you are putting in have continuity through the element.
 
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Old Oct 20, 2017 | 06:18 PM
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ala_xfire's Avatar
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Default Re: Driver side headlight out?

Also the H7 connectors have been known to corrode/rust, check them too.
 
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Old Oct 20, 2017 | 06:39 PM
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Padgett's Avatar
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Default Re: Driver side headlight out?

May have cars mixed but doesn't each headlamp beam have its own fuse. Think each low beam has it's own 15A.
 
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Old Oct 20, 2017 | 09:53 PM
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Blackout317's Avatar
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Default Re: Driver side headlight out?

Originally Posted by Padgett
May have cars mixed but doesn't each headlamp beam have its own fuse. Think each low beam has it's own 15A.
Checked both in the fuse box.
 
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Old Oct 20, 2017 | 09:54 PM
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Blackout317's Avatar
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Default Re: Driver side headlight out?

Originally Posted by ala_xfire
Also the H7 connectors have been known to corrode/rust, check them too.
Is this the connector that powers the whole headlight assembly (Running, Turn and headlight)?
 
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Old Oct 20, 2017 | 09:55 PM
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Blackout317's Avatar
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Default Re: Driver side headlight out?

Originally Posted by onehundred80
Check for power at the socket that is on the headlight, this will isolate the problem to after the socket or before the socket.
It is a tricky plug to get at, so maybe check the power coming out of the headlamp switch is an easier option, it is awkward to get to as well.
Definitely be sure that the fuse in the end of the dash is blown first though.
Check that all the bulbs you are putting in have continuity through the element.
Well check on this in the A.M. thanks for the suggestions.
 
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Old Oct 20, 2017 | 09:57 PM
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Blackout317's Avatar
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Default Re: Driver side headlight out?

Just a thought, I was looking at the fuse box diagram I see that #1 slot is unassigned. What it be possible to run the light off that slot? If there is no power from the #8 of course.
 
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