Hi!
I have a 2004 S80 twin turbo equipped with Bi-Xenon headlights. Recently, the left headlight has been flickering on and off. And then the right headlight has started flickering as well. Usually not at the same time.
The fuses and relays are good. Wiring harnesses seem intact. It doesn't seem to be a short caused by vibration because it will flicker even when parked and the engine is off.
If I cycle the light control **** when a bulb flickers off, the bulb will come back on. Sometimes for a few seconds, sometimes for minutes.
Any recommendations or inputs will be greatly appreciated!!