It is to have a consistent look in the BMW line-up. Base X3 with halogen lamps (seldom found on dealer's lot though) and full-LED X3 both use all four lights.
Previous F25 X3 also had dummy lights if equipped with Bi-Xenon upgrade.
Quote:
Originally Posted by Gary pa28
Evening , I’ve been reading the posts regarding the various types , so after having mine for aweek and been driving home at night I’ve got to experience the LED lights .
So mine do move left to right , have to manually turn on/off high beam
And I have cornering lights .
My question is and I can’t beleive I asking this is what are the lights circled in the picture because they are not high beam as this is in the same bulb as the dipped ( outside light) neither are they the fasher or parking as these are the DRLS I’m lost , I have lights that don’t seem to do anything
Help 
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