thats normal that how my x5 is too and my led reverse lights flicker sometimes when in park....and my cousins e90 325i his fog lights flicker too when he starts the car...i think its just normal

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Black 2002 X5 4.4i w/ x-pipe, euro sport mufflers, umnitza euro headlights, hid fog lights, led reverse lights. led interior lighting, led license plate lights, de-badged, black grille, tinted tail lights, carbon fiber emblems, smoked out side markers.....more to come