What is the 2007-2013 MINI Cooper S Turbocharger Oil Feed Line Leak and Turbo Failure?

The turbo oil feed and return lines on R56 Cooper S develop leaks at the banjo bolt connections. Oil starvation to the turbo bearing leads to premature turbo failure. The oil return line can also coke up from heat cycling, restricting flow. Repairs typically run $300-$2,500. Severity: high.

What is the 2007-2012 MINI Cooper S High-Pressure Fuel Pump (HPFP) Failure?

The N14 engine's high-pressure fuel pump (same issue as early BMW N54) fails prematurely, causing long cranking, rough running, and stalling. The internal cam follower wears down, reducing fuel pressure to the direct injection system. Repairs typically run $500-$1,200. Severity: high.

What is the 2025 MINI Cooper S 2025 MINI Cooper S Included in BMW Integrated Brake Recall 24V104000?

MINI is part of BMW of North America, and the 2025 Cooper S is one of the vehicles named in NHTSA recall 24V104000. The integrated brake (IB) system may malfunction. For the driver this means the Cooper S may lose power brake assist — increasing the distance needed to stop — or t… Severity: high.

What is the 2025 MINI Cooper S 2025 MINI Cooper S Integrated Brake System Recall 26V-422?

BMW of North America, which builds and supports MINI in the US, is recalling certain 2025 MINI Cooper S models under NHTSA campaign 26V422000. The integrated brake (IB) system on these cars may malfunction. The recall describes two consequences: the Cooper S can lose power brake… Severity: high.

What is the 2016-2017 MINI Cooper S Brake Light Drops Out During Turn Signal Use - Recall 17V222000?

If you own a 2016 or 2017 MINI Cooper S Clubman, this safety recall applies to how your car signals a stop. MINI found that the inner brake light built into the bumper goes out whenever the turn signals are operating at the same time the brakes are applied. Because that lamp is r… Severity: high.

What is the 2007-2025 MINI Cooper S Direct Injection Carbon Buildup on Intake Valves?

All turbocharged direct-injection MINI engines (N14, N18, B46/B48) accumulate carbon deposits on intake valves since fuel is injected directly into the cylinder rather than washing over the valves. This reduces airflow and causes rough running. Repairs typically run $400-$800. Severity: medium.

What is the 2007-2020 MINI Cooper S Premature Clutch and Dual-Mass Flywheel Failure?

Manual transmission MINI Cooper S models experience premature clutch and dual-mass flywheel (DMF) failure, often before 60k miles. The DMF springs weaken causing chatter and vibration, and the clutch disc wears prematurely due to the turbo engine's torque characteristics. Repairs typically run $1,200-$2,800. Severity: medium.

MINI · Known Issues

2007-2025 MINI Cooper S Problems: 9 Known Issues

2007-2025 model years · 13,900+ owner reports · Updated August 2026

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According to Au7o's analysis of 13,900+ owner reports, the 2007-2025 MINI Cooper S has 9 documented known issues, with 7 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), High-Pressure Fuel Pump (HPFP) Failure ($500-$1,200 repair), 2025 MINI Cooper S Included in BMW Integrated Brake Recall 24V104000, 2025 MINI Cooper S Integrated Brake System Recall 26V-422, Brake Light Drops Out During Turn Signal Use - Recall 17V222000 and NHTSA Recall 23V337000: Driver's Footwell Control Module Can Short-Circuit and Cause a Fire. The most commonly reported issue is N14/N18 Turbo Engine Timing Chain Catastrophic Failure with 4,500 owner reports. Across all issues with published estimates, repair costs range from $300 to $3,000. DIY maintenance guides at au7o.io.

All 9 Known Issues

Frequently Asked Questions

What are the most common MINI Cooper S problems?

According to Au7o's analysis of 13,900+ owner reports, the 2007-2025 MINI Cooper S has 9 documented issues. The most frequently reported are: N14/N18 Turbo Engine Timing Chain Catastrophic Failure, Turbocharger Oil Feed Line Leak and Turbo Failure, High-Pressure Fuel Pump (HPFP) Failure. Of these, 7 are rated critical and should be addressed promptly.

Is the MINI Cooper S reliable?

The 2007-2025 MINI Cooper S has 9 known issues documented across 13,900+ owner reports. 7 issues are rated critical: N14/N18 Turbo Engine Timing Chain Catastrophic Failure and Turbocharger Oil Feed Line Leak and Turbo Failure and High-Pressure Fuel Pump (HPFP) Failure and 2025 MINI Cooper S Included in BMW Integrated Brake Recall 24V104000 and 2025 MINI Cooper S Integrated Brake System Recall 26V-422 and Brake Light Drops Out During Turn Signal Use - Recall 17V222000 and NHTSA Recall 23V337000: Driver's Footwell Control Module Can Short-Circuit and Cause a Fire. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common MINI Cooper S problems?

Repair costs for known MINI Cooper S issues range from $300 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, N14/N18 Turbo Engine Timing Chain Catastrophic Failure, typically costs $1,500-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year MINI Cooper S is the most reliable?

Reliability varies across model years of the MINI Cooper S. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2007-2025 MINI Cooper S with 9 documented issues documented across 13,900+ owner reports.

All 9 Known Issues

N14/N18 Turbo Engine Timing Chain Catastrophic Failure#

Turbocharger Oil Feed Line Leak and Turbo Failure#

Direct Injection Carbon Buildup on Intake Valves#

2025 MINI Cooper S Included in BMW Integrated Brake Recall 24V104000#

2025 MINI Cooper S Integrated Brake System Recall 26V-422#

Brake Light Drops Out During Turn Signal Use - Recall 17V222000#

NHTSA Recall 23V337000: Driver's Footwell Control Module Can Short-Circuit and Cause a Fire#

High-Pressure Fuel Pump (HPFP) Failure#

Premature Clutch and Dual-Mass Flywheel Failure#

Other MINI Models