Audi SQ7 Air Suspension Failure Warning Signs

Having dealt with suspension failure issues on my S6 from a similar year, I can share my experience with damping control problems. I have some experience with Audi suspension systems, though mainly through maintenance rather than modifications. The symptoms you describe match what I encountered, especially the suspension getting stuck in one mode and the rough ride quality. In my case, the car damping system was showing errors due to a faulty wiring connection. The workshop diagnosed a damaged plug connection to one of the dampers, which was causing the system to default to a fixed setting. The fix was straightforward once properly diagnosed. The technician found a corroded connector that was disrupting the signal to the damping control unit. They replaced the wiring harness and connector for 95 Euro, which resolved both the warning light and restored normal suspension operation. To help provide more specific guidance, could you share: The build year of your SQ7, Current mileage, Exact error code showing, Whether the issue developed suddenly or gradually, If you notice the problem more on certain road surfaces This info would help determine if your vehicle suspension issue matches what I experienced or if it might be something different.

Thanks for sharing your diagnosis details. On my 2022 SQ7 with 17371 KM, the issue appeared quite suddenly last week. The error code reads P2547, and our situations sound very similar. The car damping definitely feels most problematic on rough roads and highway expansion joints. The shock absorber behavior matches your description exactly, stuck in a single mode with that harsh, uncontrolled ride. Did your repair shop mention anything about typical failure points in the wiring harness? I will book a service appointment but want to be prepared with the right questions about the suspension issue.

Thanks for those extra details. Your P2547 code and symptoms match my experience almost exactly. Looking back at my service records from when I had this suspension issue with my S6, it turned out the wiring harness damage typically occurs near the wheel well area where the cables are most exposed to road debris and moisture. The ride comfort problems you describe over expansion joints are a telltale sign of the car damping system being locked in its firmest setting. When my car had this problem, the suspension failure was most noticeable on those exact same road conditions. The good news is that with such low mileage on your SQ7, this should be covered under warranty. My technician explained these wiring issues are a known weak point in the car handling system. The complete repair on mine took about 3 hours once they had the parts. When booking your appointment, specifically ask them to check: The wiring connector at the shock absorber unit, The main damping control module connections, The sensor wiring running along the frame This particular suspension issue is frustrating but usually fixable without major component replacement. Once repaired, the car handling characteristics should return completely to normal.

Let me share an update on my situation. After taking the car to the shop today, their diagnosis confirmed a lot of what you mentioned about the suspension issue. The technician found the exact same wiring harness problem near the wheel well, with visible corrosion on the connector. The car handling has been fully restored now that they replaced both the wiring and connector assembly. Total repair cost was 120 Euro, which seems reasonable given the detailed work involved. The car damping system is working perfectly again, the difference in ride quality is dramatic, especially over those highway expansion joints I mentioned. For anyone searching the forum later with similar shock absorber problems, definitely have them check those wiring connections first. The suspension failure symptoms can seem major, but the fix might be simpler than expected. Really appreciate the detailed guidance, it helped me ask the right questions at the shop and understand exactly what they were fixing.