Ccrosser Headlight Range Control Failure

Sounds like a pain. Checked the electrical connectors to the headlight assembly? Loose or corroded connection can cause havoc with the auto-leveling system. Are your headlights adaptive?

Electrical connectors seem well seated, but I'll double-check for corrosion. Yes, the headlights are adaptive. Does that change anything?

Adaptive headlights add complexity. Could be the servomotor, as suspected, but with adaptive systems, there's also the control module. Given the symptoms and error codes, I'd suggest a professional diagnosis. A workshop should pinpoint the exact cause with their diagnostic tools. Good luck!

Took it to a workshop, and you were right, the servomotor was indeed defective. Repairing the lighting system set me back 1040€, but at least it's resolved.