MINI Cooper S Problems: 5 Issues Every Owner Should Know

According to Au7o's analysis of 13,900+ owner reports, the 2007-2025 MINI Cooper S has 5 documented known issues, with 3 rated critical. The most serious are N14/N18 Turbo Engine Timing Chain Catastrophic Failure ($1,500-$3,000 repair), Turbocharger Oil Feed Line Leak and Turbo Failure ($300-$2,500 repair) and High-Pressure Fuel Pump (HPFP) Failure ($500-$1,200 repair). The most commonly reported issue is N14/N18 Turbo Engine Timing Chain Catastrophic Failure with 4,500 owner reports. Across all issues, repair costs range from $300 to $3,000. DIY maintenance guides at au7o.io.