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Old 01-09-2010, 06:03 PM   #1
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Join Date: Jul 2005
Location: Arkansas
Posts: 36
My Ride: 04 BMW 330i ZHP
Halogen Low Beam problem - bulb socket issue

My driver's side low beam occasionally goes off when the headlights are on. When it goes dark, it turns on the burned out headlight light in the IP. I took the bulb socket out of the headlight assembly, turned on the car and headlights, and noticed the light wasn't on. I pushed on the metal around the bulb itself (the metal is spring-loaded) and the light began to flicker from off to on and back. I heard/felt some metal-on-metal contact inside the bulb socket.

Do these bulb sockets go bad in this fashion where something inside loses contact and causes this intermittent problem? Should I replace just the bad one or both low beams? High beams?

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Old 05-04-2010, 04:23 PM   #2
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Join Date: Mar 2010
Location: Winchester, CA
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My Ride: 2004 325i
Same thing on passenger side

I have the same issue and can pop the hood and gently nudge the socket and it will come back on, usually for the duration of the trip.

I did notice when changing out the bulb that there was some corrosion in the contacts and cleaned as best I could with some sand paper. It's a tight fit to get any real friction though.

I'm not sure if that is the cause. I'm going to restore my lenses in the next week or so and plan to investigate the headlamp further then.
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