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05-21-2018, 01:05 PM | #1 |
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2008 M3 - Intermittent low beam issues
My new-to-me E90 M3 is having intermittent low beam issues. About 50% of the time, the passenger low beam will not fire when I turn on the headlights. The other 50% of the time they work perfectly fine.
If they do fail to fire, I get the warning on the dash saying there is a low-beam malfunction. Sometimes I can "recover" by toggling the lights on/off a few times, but this is not fool-proof. There have been cases where they refuse to fire at all and I have to drive with 1 light out. In general, once they are on they stay on for the remainder of the drive, however I think once the passenger light actually turned off mid-drive when it was working fine. There is no discoloration or dimness in the light output when they are working. Has anyone experienced this in their car before?
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05-21-2018, 04:42 PM | #4 |
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bulb/ballast failing or on it's way out. swap them from side to side and see if the failure follows (bulb or ballast).
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05-22-2018, 10:37 PM | #5 | |
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Thanks all for the suggestions!
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05-22-2018, 11:21 PM | #6 |
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I don’t know anything about lights but welcome back Kevin
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06-18-2018, 04:42 PM | #7 | |
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06-18-2018, 07:33 PM | #9 |
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Yup, same here. Dealing with non-OEM bulbs from PO. Thanks for confirming OEM bulbs fixed the issue for you
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