Hello all, my V60 is now soon 4 years old, has in every case run about 110,000 km. (Since it is not part of the topic, I write it in brackets: the last 22,000 km with me and absolutely problem-free. Only “macking” so far: flaps in the trunk.) Since I always ride with light, the burners now have some operating hours (>1800h), which is why I ordered new ones. So in everyday life I already notice that they are often already darker than normal light of an H7 bulb. In the meantime, my headlights are clearly fogged. Is there any way to clean them? Has anyone ever done this before? I had a SW open so far to see what kind of burners are installed. (Osram HBI D3S), I noticed that it is difficult to get to the lenses. So if I go by now to dive the burners, it would be a washing-up for me to also clean the lenses. …. Honestly, I am a little disappointed by the light of the V60 so far. — —– And one more question: When I wanted to get to the bottom of the flapper in the trunk, I cleaned everything up once. I noticed a measuring device (?) which is located pretty much behind the right back seat and from which a short tube reaches into the trunk. Does anyone know what that is?