2021 Audi SQ8 Problems: 6 Issues Every Owner Should Know
2021 model year · 480+ owner reports · Updated April 2026
According to Au7o's analysis of 480+ owner reports, the 2021 Audi SQ8 has 6 documented known issues, with 4 rated critical. The most serious are Adaptive Air Suspension Strut and Compressor Wear ($1,200-$4,500 repair), Sport Differential Clutch Pack and Module Failure ($1,500-$4,500 repair), 4.0T Twin-Turbo Coolant System Degradation ($800-$2,500 repair) and Turbocharger Oil Supply Filter Clogging (4.0T TFSI) ($200-$15,000 repair). The most commonly reported issue is Adaptive Air Suspension Strut and Compressor Wear with 231 owner reports. Across all issues, repair costs range from $0 to $15,000. DIY maintenance guides at au7o.io.