E-tron Emergency Call System Failure Sparks Concern

Had a similar issue with my 2019 Audi e-tron. The emergency call system malfunction warning appeared alongside SOS signal errors in the instrument cluster. The telematics unit was showing multiple diagnostic codes related to communication failures. The root cause turned out to be a damaged wiring harness connector at the telematics control module. These connectors can deteriorate due to vibration and temperature cycles. Car safety systems are designed with redundancy, but any emergency call system faults should be addressed promptly. The repair involved accessing the module behind the instrument panel, replacing the connector assembly, and performing a system reset. While not mechanically serious for vehicle operation, this is a critical car safety feature that needs proper functionality for emergency situations. The fix required specialized diagnostic equipment to clear the fault codes and verify proper telematics operation. Would suggest having this checked at a shop with experience in EV electronics, as proper testing of the emergency call system requires specific tools. The vehicle ran perfectly otherwise during this time, just like your situation, since this system operates independently from the drive components.

Thanks for sharing your experience with the e-tron telematics issue. Your solution matches exactly what I encountered. The automotive electronics specialist confirmed a similar wiring harness problem in my Q4. Curious, do you remember the repair costs for your connector fix? In my case, they also recommended a full diagnostic scan of other emergency call systems to prevent future failures. Just wondering if any other related problems came up for you after the initial repair?

After the connector replacement and system reset on my e-tron, all telematics functions worked perfectly with no recurring issues. The SOS signal and emergency call system have been reliable ever since. The repair cost was 95 Euro for the faulty cable connection fix, which included the diagnostic scan and verification of the system. It was money well spent since having a working emergency call system is crucial for car safety. The mechanic did a thorough check of related components while performing the repair, and no additional problems were found in the diagnostic codes. The complete telematics unit scan was part of the standard repair protocol to ensure all communication systems were functioning correctly. My suggestion would be to go ahead with their recommended full system scan. These preventive checks help catch potential issues before they develop into more serious problems that could compromise the emergency response features.

Thanks for the feedback. I took my Q4 to an automotive electronics specialist who quickly identified the faulty wiring harness. The total repair came to 120 Euro including the diagnostic scan and system reset. The mechanic was thorough and professional, checking all related emergency call components. No other malfunctions were found in the diagnostic codes. The SOS signal is now working perfectly and all warning lights are off. Much better experience than my previous repair attempts. The call failure warnings have not returned and the car continues running great. Good to know others faced and resolved similar issues successfully.