Flashing SOS Light Fix Needed in VW Scirocco TDI

Had the same malfunction in my 2014 Golf TDI. The emergency call system kept showing errors and the control module was registering diagnostic codes related to the telematics unit. The root cause turned out to be corroded wiring connections near the roof antenna module. During the system reset attempts, we found that water had leaked through a faulty seal and damaged several connection points. This created intermittent communication failures between the emergency call unit and the main control module. The repair required removing the headliner to access and replace the damaged wiring harness and connector assembly. Once replaced, the diagnostic codes needed clearing and the emergency call system required recalibration. This repair should be handled by a certified service center since it involves safety-critical systems. The malfunctioning emergency call system is a serious issue as it could prevent automatic emergency services notification in case of an accident. Based on the symptoms described for the Scirocco, its likely facing similar connection issues. Would recommend having the wiring harness and roof module connections inspected first before replacing any components.

Thanks for sharing your Golf experience. Your wiring issue sounds exactly like what I am dealing with in my Scirocco. I noticed the SOS signal problems started after some heavy rain, which makes me think water damage could be the culprit here too. Quick question, do you remember roughly how much you paid for the full repair? Also, has your car safety system been working properly since the fix, or have you noticed any other call failure issues? My local VW dealership quoted me a pretty high price just to diagnose the control module, so I am trying to get a sense of what others paid for similar repairs.

Finally got my Scirocco back from the certified service center after following up on this emergency call system malfunction. The repair was much simpler and cheaper than initially feared. The technician found a loose cable connection at the roof module, similar to what you experienced. Total cost came to 95€ for fixing the faulty plug connection. The system reset after the repair cleared all diagnostic codes, and the SOS signal is now working perfectly. No more error messages in the speedometer display. The service center confirmed the water intrusion caused the connection to corrode, but luckily there was no need to replace the entire wiring harness like in your case. Been monitoring the system for the past few weeks through various weather conditions, and the emergency call feature has remained fully functional with no warning lights or call failure messages. Definitely worth getting it properly diagnosed rather than continuing with temporary fixes.

Thanks everyone for the helpful insights. Just wanted to close this thread by sharing how things turned out. Took the car to a certified service center last week based on the feedback here. The technician found extensive water damage around the roof module, way worse than just a loose connection. The corrosion had spread through multiple wiring harnesses. Total repair came to 780€ including labor, new wiring harness, and full system recalibration. More than I hoped to pay, but the emergency call system is now working perfectly. No more flashing lights or error messages. The mechanic showed me where water had been seeping in through a deteriorated roof seal. They fixed that too, which should prevent future issues with the car safety systems. Definitely learned my lesson about getting these kinds of malfunctions checked promptly by qualified technicians. While expensive, having working emergency call capability is worth the investment for the peace of mind.