I also saw it in new BMW. As know lamp cannot be hermetically sealed because there has to be ventilation (cooling system) for LED electronics.I noticed it in the heads once. But I have also seen it on pretty much every car I've owned including recent Fords. Almost bound to happen if the unit is not hermetically sealed. Anyone remember Lucas sealed beam headlights?
I’ve had it in most cars I’ve owned. Just one those things.I also saw it in new BMW. As know lamp cannot be hermetically sealed because there has to be ventilation (cooling system) for LED electronics.