Headlight trouble 2005 300C
 

Has anyone had their headlights [HID] come on by themselves?
At times, no matter the switch setting, the lights come on and cannot be turned off with the switch. They do go off when the ignition switch is turned off.
The car has auto on but the lights will even come on when the switch is in the off position.
Car has 145000 miles and no other issues. Any thoughts?

Headlight switch issue. Replace headlight switch.

I had the same problem in my car. Already ordered the new switch from Rockauto and I must be getting it next week or so.