VW Transporter Hood Safety System Fails at Low Mileage

Had the same issue on my 2015 VW Tiguan last month. The collision detection system triggered a false deployment of the hood latch mechanism, causing both the airbag light and hood error messages to appear. The car electronics needed a complete diagnostic scan which revealed multiple impact sensor faults. The problem stemmed from corroded wiring connections near the hood safety module, affecting both the hood latch sensors and pedestrian protection system. This is considered a serious safety concern since the active hood system is designed to protect pedestrians in case of an impact. The repair involved: Replacing the main hood latch sensor unit, Installing new wiring harness for the impact sensors, Resetting and recalibrating the entire car sensor system, Updating the control module software The whole process took 2 full days at the workshop. Given that these are critical safety components, continuing to drive with active fault messages is not recommended. Would suggest getting it checked immediately since faulty sensors could either fail to deploy when needed or trigger unexpectedly while driving.

Thanks for sharing your experience. That sounds exactly like what happened to my Transporter. Those corroded wiring connections definitely seem to be a common issue affecting the car safety systems. Did you remember roughly how much the total repair cost was? I am planning to take mine to the workshop next week, but want to get an idea of the expected costs. Also, has everything been working properly since the repair, or have you noticed any other issues with the hood latch or collision detection systems?

After getting my Tiguan fixed at the workshop, I can confirm the repair was completely successful. The active hood fault warning disappeared and the entire safety system has been working flawlessly for several months now. The total repair came to 315€, which covered replacing the faulty acceleration sensor that was causing the system fault. The car electronics are now functioning perfectly, with no reoccurrence of the airbag warning light or any other collision detection alerts. The mechanic explained that these car sensor issues are relatively common and can affect the entire pedestrian protection system if left unaddressed. The quick repair time and reasonable cost made it a worthwhile fix, especially considering the importance of maintaining proper safety systems. From my experience, once the faulty components are replaced and the system is properly recalibrated, these problems typically don't return. You should feel confident about getting yours repaired, it seems to be a straightforward fix for a qualified technician.

I took my Transporter to the workshop yesterday after seeing your replies. The diagnosis confirmed exactly what you described, corroded wiring affecting the impact sensor system. The mechanic found multiple system faults related to the hood safety components. The total repair came to 340€, slightly more than yours but still reasonable considering the work involved. They replaced the damaged sensors, installed new wiring, and performed a complete recalibration of the car electronics. The whole job took about 6 hours. Really glad I got it fixed right away. All warning lights are now off and the active hood system is working correctly. The mechanic showed me how the car safety systems were all properly communicating again. Definitely worth addressing these sensor issues promptly rather than risking further complications.