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claraheld10
Modus headlight range control faulty
4 comment(s)
claraheld10 (Author)
Thanks for the quick reply! No recent front-end work, but I don't have a proper scan tool, just a basic OBD reader, and it doesn't give me any specific codes related to the headlights. Could it be the control module for the lighting system, or maybe the servomotors inside the headlight units themselves?
charlotteschroeder1
Given the symptoms, a defective servomotor within one of the headlights is the most probable cause, especially if your reader isn't pulling any relevant codes. The control module is less likely to fail in this manner. I'd advise against further troubleshooting without proper equipment and just take it to a reputable workshop specializing in vehicle lighting systems.
claraheld10 (Author)
Appreciate the advice. I took it to a workshop, and you were spot on – it was a faulty servomotor in the headlight. Ended up costing me 1040€ to replace. Thanks again for the help!
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charlotteschroeder1
Okay, the stored error and erratic beam behavior definitely points to an issue within the auto-leveling system. Has the car had any front end work recently, that might have disturbed the headlight alignment or damaged a sensor? Do you have access to a scan tool to read the specific fault codes? Knowing the exact code would help narrow down the possibilities.