SQ7 Headlight Misalignment Causing Dashboard Warnings

Had a similar issue with my 2019 S6. The auto-leveling system was malfunctioning, causing inconsistent beam angles and dashboard warnings. The root cause turned out to be a defective servomotor in the headlight assembly that controls the range adjustment. Initial diagnostics pointed to electrical connectors and the control module, but after thorough testing, the servomotor was identified as the failing component. The repair required removing the entire headlight unit to access and replace the servomotor mechanism. The light intensity was also affected because the system couldn't maintain proper beam adjustment. This was a significant repair as the headlight range control system is integral to safety. The faulty servomotor can cause the auto-leveling to stop working completely, potentially creating hazardous driving conditions at night. The symptoms match what you describe, inconsistent beam angles and persistent errors even after basic checks. Would recommend having the servomotors specifically tested, as they commonly fail on these models after 100000km. A full diagnostic of the range control system should identify if this is indeed your issue. Consider this a priority repair, as compromised headlight function affects both your visibility and the safety of other drivers.

Thanks for sharing your experience. That matches exactly what I went through with my Audi SQ7. After replacing the headlight switch and checking all electrical connectors, it turned out the servomotor was indeed the root cause. The lighting system works flawlessly now, with proper light intensity and beam adjustment. Could you share what the repair ended up costing you? Also curious if youve had any other issues with the control module or auto-leveling since the fix?

Thanks for asking about the costs. After the servomotor replacement, my headlight range control has worked perfectly with no further issues. The total repair came to 1040 Euro, which included the new servomotor and labor for the complete beam adjustment setup. The auto-leveling system has performed flawlessly since the fix. No more warning lights or problems with the control module. The light intensity stays consistent now and the beam adjustment works exactly as intended. It was worth every cent considering how critical proper headlight function is for safety. The fix restored all the automated features, and the range control system maintains perfect beam angles regardless of vehicle load or road conditions. Based on the shop feedback, these servomotors tend to be the weak point in the system rather than the control module or headlight switch.

I finally took it to a trusted mechanic after getting your advice. The total repair cost was 980 Euro, slightly less than yours. The servomotor replacement took about 4 hours and included a complete calibration of the headlight range control system. After the fix, the lighting system works exactly as it should. No more dashboard warnings, and the light intensity stays perfect. The control module readings are all normal now. Real game-changer for night driving, with proper beam angles and consistent auto-leveling performance. Havent experienced any issues since the repair was done 3 months ago. The headlight switch and all other components are functioning normally. The mechanic mentioned these servomotor failures are quite common after 100000km, so Im glad to have addressed it before winter driving season.