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gretastar50
Multiple VW Safety Alerts: Active Hood Malfunction Alert
4 comment(s)
gretastar50 (Author)
Last service was completed at 143000km and the symptoms started appearing shortly after. The warnings are now constant and not intermittent as mentioned initially. The car electronics diagnostic at my regular workshop showed multiple sensor errors, but they were unable to pinpoint the exact source. Have scheduled a visit to get the acceleration sensor checked based on your experience, especially since the pedestrian safety systems need to function properly. Looking to avoid replacing the entire sensor array if possible, as that would be quite costly.
luisedark1
Thanks for those additional details about the timing of the issues. The constant warnings definitely align with what I experienced, my sensor problems also became permanent rather than intermittent after the initial glitches. Since your symptoms emerged post-service, have the workshop verify if any work was done near the hood latch or front impact sensor areas. Sometimes disconnecting components for other repairs can trigger these system faults. In my case, the initial diagnostic also showed multiple sensor errors, similar to yours. However, replacing just the acceleration sensor resolved all warnings. The total sensor array replacement wasnt necessary, which saved significant costs. A few technical points from my repair experience: The crash detection system required recalibration after sensor replacement, Workshop needed specific VW diagnostic tools to reset all system fault codes, Car electronics testing confirmed full restoration of safety features The constant nature of your warnings suggests a hardware rather than software issue. This matches the pattern I encountered before identifying the faulty sensor. Would strongly recommend having the acceleration sensor checked first before considering more extensive repairs. The pedestrian protection system relies heavily on accurate sensor input, so resolving this promptly is important for maintaining proper safety function.
gretastar50 (Author)
Thanks for sharing that detailed response about the faulty sensor being the likely culprit. The symptoms matching your experience is really helpful to know. Just had the car checked at the dealership today and their diagnosis matches exactly what you described, a faulty acceleration sensor that's causing the collision detection system to malfunction. The repair quote came in at 295€ for parts and labor, slightly less than what you paid. They confirmed they can replace just the single sensor rather than the complete array, which is a relief. They also mentioned the need for full safety system recalibration after the repair, just as you noted. Have scheduled the work for next week. The service advisor assured me this will resolve all the warning lights and restore proper function to the pedestrian safety features and hood latch mechanisms. Really appreciate your detailed explanation of the repair process, it helped me understand exactly what needed fixing and gave me confidence in the proposed solution rather than facing a much costlier complete system replacement.
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luisedark1
As a Volkswagen owner with some hands-on repair experience, I faced nearly identical issues with my 2019 VW Arteon Hybrid. The simultaneous activation of multiple car safety systems pointed to a faulty acceleration sensor, which serves as a crash detection component. The main symptoms matched yours exactly, airbag warning light, active hood alerts, and actuator warnings all triggering without any actual impact. The car sensor network interpreted this as a system fault rather than a real collision. My repair process: Had diagnostic tests run to confirm the impact sensor malfunction, Required replacement of the front crash sensor unit, Total repair cost was 315€ including programming, Fixed all warning lights and restored proper safety system function The workshop confirmed this is a known issue affecting certain VW models with similar safety system configurations. To provide more specific guidance about your case, could you share: Current mileage, Whether the warnings appear constantly or intermittently, If any recent maintenance was performed, Whether you notice the issues more during specific driving conditions These safety system alerts definitely need attention, as they indicate potential compromise of critical crash detection features. Would recommend having it checked soon to ensure all protection systems remain fully functional.