RS7 Active Hood & Airbag False Crash Detection Alert

Having faced a similar issue with my 2013 RS6, I have some experience with impact sensor malfunctions in these models. The crash detection system in my car also falsely activated, triggering multiple safety warnings. After diagnostic testing, the workshop found a defective acceleration sensor that was sending incorrect signals to the pedestrian safety system. The faulty sensor convinced the car it had experienced an impact when there was none, activating various safety protocols including the hood actuators. The repair involved: 1. Full system diagnostic scan 2. Replacement of the main acceleration sensor 3. Recalibration of the car safety systems 4. Reset of the active hood system Total cost was 315 Euro for parts and labor. Since the repair, all systems have functioned normally with no false triggers. To provide more specific guidance, could you share: Current mileage on your RS7, Whether the warnings appeared suddenly or gradually, If you noticed any other electrical issues, Whether the car experienced any recent impacts, even minor ones, If there were any recent repairs or maintenance work These details would help determine if your issue matches the sensor fault I experienced or points to something different in the crash detection system.

Last service was at 55199 KM and a full diagnostic scan revealed multiple malfunctions in the hood latch system. The workshop confirmed a fault in both impact sensors near the front bumper, likely triggered by water damage. The car safety system keeps activating out of nowhere due to this issue. The mechanic quoted 890 Euro for complete sensor replacement plus recalibration of crash detection systems. Given the safety implications and risk of false triggers, planning to proceed with repairs next week. Running the latest diagnostic logs showed additional system fault codes related to the pedestrian protection module. This explains why the active hood keeps trying to deploy without actual impact detection. Would appreciate feedback from others who had similar repairs done, especially regarding long-term reliability after sensor replacement.

Thanks for the update on your RS7's diagnostic results. When I had my RS6 sensors replaced, the repair bill was lower since only one sensor needed replacement. The 890 Euro quote for dual sensor replacement plus recalibration seems reasonable given current parts costs. The water damage to impact sensors matches what I discovered during my repair, these components are sensitive to moisture intrusion. After my sensor replacement, the crash detection system has worked flawlessly for over 18 months with no false triggers. A few things I learned from my experience: Have them check the wiring harness connecting to the sensors, Request thorough testing of the hood latch mechanism after repair, Ensure the system fault codes are completely cleared, Get confirmation the pedestrian protection module is properly recalibrated The unusual activation of the car safety system you mentioned sounds exactly like my symptoms before the repair. The workshop should verify all collision detection components are properly sealed against moisture during reinstallation to prevent future issues. Since my repair included a full system reset and recalibration, no further problems have occurred with false crash detection or hood deployment. The investment in proper repair was worthwhile for the safety assurance alone.

The water damage diagnosis matches my situation perfectly. Your experience with the RS6 repair helps confirm my decision to proceed with the full sensor replacement. The quoted 890 Euro seems fair considering both impact sensors need replacing, plus the added work on the car electronics and safety systems. The unusual activation has become more frequent lately, making the repair urgent. After checking the latest diagnostic logs again, I noticed additional fault codes in the collision detection module that weren't present initially. This reinforces the need for a complete system overhaul. Will definitely have them check the wiring harness and ensure proper sealing during installation. The workshop mentioned they would perform a full recalibration of the hood latch and crash detection systems after replacement. Thanks for sharing your long-term reliability experience, good to hear no issues occurred after proper repair. Will proceed with the scheduled work next week and update on the results once complete.