Q5 Adaptive Headlights Malfunction at Low Mileage

Having experienced similar symptoms with my 2018 Audi Q7 Hybrid, the issue turned out to be a defective servomotor in the headlight beam adjustment system. The lighting system would malfunction intermittently, causing irregular beam patterns and triggering warning lights. The root cause was traced to faulty electrical connectors within the headlight control module. The servomotor that controls the automatic beam adjustment had developed internal wear, preventing proper communication between the control module and headlight assembly. Though the mileage was low in your case, these issues can occur due to environmental factors affecting the electrical components. The repair required replacing the headlight control module and recalibrating the entire adaptive lighting system. While not a critical safety concern if addressed promptly, leaving it unfixed could lead to reduced visibility and potential electrical system complications. The diagnostic process involved checking the electrical connections, testing the servomotor function, and scanning the control module for specific fault codes. The headlight switch and associated wiring should also be inspected for any signs of damage or corrosion. Worth noting that this is a known issue in some units from that production period, so it should be covered under warranty given the vehicle age and mileage.

Thanks for sharing your experience with the Q5 headlight issue. Mine got fixed last week and the auto-leveling system is working perfectly now. The technician mentioned they found a similar problem with the control module and electrical connectors. Looking back, the symptoms were exactly as you described, inconsistent beam patterns and constant adjustments. Since the repair, have you encountered any other lighting system problems? Also, would you mind sharing the repair costs in case its needed outside warranty?

Following up on your questions, its been completely trouble-free since the repair work was done on my Q5. The headlight range control system has been working flawlessly, with no more irregular beam adjustments or warning lights. The beam adjustment stays consistent now, and the control module communicates perfectly with the headlight assembly. The total repair cost came to 1040 Euro, which included replacing the defective servomotor and recalibrating the system. While it was a significant expense, the headlight malfunction needed proper fixing to prevent more serious issues down the line. Its good to hear your technician found and resolved the same underlying problem. These control module issues, though uncommon at low mileage, need professional attention when they occur. The investment in proper repair typically prevents recurring problems with the adaptive lighting system. Just keep monitoring the headlight switch and beam patterns occasionally to catch any potential issues early, but you likely wont see this problem again after the complete fix.

Thanks for the helpful details on the headlight repair. Just wanted to close the loop on my experience, took it to the dealer last Thursday and they found a faulty control module causing the irregular beam adjustment issues. The auto-leveling system was completely misaligned due to some corroded electrical connectors. The repair took about 4 hours, they replaced the control module, cleaned all connections, and recalibrated the entire lighting system. Total cost was covered under warranty since my Q5 is still fairly new. The service technician mentioned these issues sometimes pop up due to moisture getting into the electrical components, even with low mileage. Been driving for a week now and the headlight range control is working perfectly, no more unusual adjustments or warning lights. Definitely worth getting it checked right away rather than waiting for bigger problems to develop. The beam patterns are now consistently correct and the auto-leveling responds smoothly on different road conditions.