Hello all, I'm new to this forum and this is my first post, if I write something inadequate or out of place please let me know Now I'll start with the (still unknown cause of the issue): About a week ago I was driving home under really heavy rain. I had all the lights on (fog + low beams + high beams), but suddenly the high beams went out (both). I continuously tried turning them on/off several times to no avail Next day I took the car to the dealership to be checked, but surprisingly the issue simply disappeared. It was working perfectly. This happened several times (the trip to the dealership and the trip back with no answers). All the times they told me they couldn't find the issue, they checked connectors, cleaned them and added some grease, checked for DTCs and nothing. I've being to the dealership 4 times already but from time to time the issue appears again. What I did noticed is that if I start the car and the high beams are working, they will remain working until I stop it. Also when they are failing, the flash-to-pass seems to kind of work (the beams light up for some milliseconds and then the relay shuts them down (I can hear the "tick"). But last Sunday I was again driving under the rain (not so heavy this time) and the fog lights (both) went out (the high beams were luckily working), and it hasn't happened again (fog lights failing) So, in summary, this is driving me crazy... A few facts I've gathered: - When the lights fail (high beams or fog lights), both fail together - The frequency of the high beams failing is much lower now than the first days - The fog lights failing only happened once - All fuses are fine - There are no DTCs in the entire car Could you help me find what the problem is ? Thank you in advance !