Hello, I noticed today that with my Alfa 156 2.5 V6 the headlight cleaning system of the xenon headlights does not work. First of all, with Alfa is nevertheless like with any other car also, if I have light on and water spray must be sprayed both on the front window as well as on the headlights or how does it work ? The wiper nozzles at the front of the front window and rear rear window work perfectly. It also does not run out when spraying water under the car, so one might think forward is something leaking. Therefore my question can be that the headlight cleaning system does not spray ? mfg