[adelaidethe90]

Hey everyone so I’m having an issue I have a 06 325i on my gauge cluster it says theirs a headlight out ( low beam driver side) but it’s weird when my lows are on they work fine but if I turn all my lights on driver side low beam shuts off I’ve checked all other lights no issue everything accounts for when on same with turn signals I bought new bulbs gonna see if they work any ideas in the mean time?

[JB20DGM]

There are two modes to the light out check...a low voltage mode or cold check which it just looking a continuity for the most part. It can be sensitive enough to error on a bulb that's marginal/getting ready to fail. There's also a hot check, which runs when the lights are on, and is monitoring for an over current / short situation.

I also believe the "low/dipped beam failure" indication can also apply to the fog lights as well (or at least that's what I recall the owners manual saying). I'm not sure if it would also flag the little bulb in there that shares the reflector with the high beam bulb.

A chunk of this assumes halogen headlights.