Hello dear Volvo driver. The Tüv does not let me drive, because my light range regulation does not work. Have both headlights removed and blown with a compressor at the air entrance. There it pushed the reflectors slightly forward. So the work. Always thought the would work with underpressure like the rest of the engine controllers. From the white air ducts comes no air. Question: Where do I have to look, I have to decompose inside the paneling at the pedals? In the motor aum I can find nothing eye-catching about this. Greetings Funkentod.