Mini Cooper S N18B16A 1.6L turbocharged engine for sale

Mini Cooper S N18B16A 1.6L turbocharged direct-injection 4-cylinder aluminum engine

Highly regarded and Performance-focused power plant, used engine for sale.

The Mini Cooper S N18B16A 1.6L turbocharged engine is also a highly regarded and performance-focused power plant engineered to deliver dynamic throttle response, strong mid-range torque, and excellent efficiency. 

Designed as an evolution of the earlier N14 Prince engine, the N18B16A integrates advanced BMW technologies including DOHC (Dual Overhead Camshafts), Valvetronic variable valve lift, and a BorgWarner twin-scroll turbocharger to enhance power delivery and fuel economy. 

This combination makes it a top choice for enthusiasts, professional workshops, and furthermore for MINI owners seeking a reliable, high-performance engine for sale.

With a displacement of 1.6 liters (1598 cc) and a lightweight aluminum block, the N18B16A uses direct fuel injection and a BorgWarner twin-scroll turbocharger to produce approximately 170–184 horsepower and up to 240–250 Nm of torque, depending on tune and model year. 

The twin-scroll turbo design improves spool-up times and reduces turbo lag, giving the Mini Cooper S instant throttle response and a lively power curve that enhances driving enjoyment on city streets and open highways alike. This powerplant delivers strong performance while maintaining respectable fuel efficiency thanks to its modern combustion strategy.

 Compatibility, Common weaknesses and Maintenance.

This engine is compatible with a wide range of Mini Cooper S models, most commonly found in the R56 Hatchback (2007–2013), R55 Clubman S, R57 Convertible S, and select early R60 Countryman S variants. Its widespread use across multiple MINI platforms and also ensures good parts availability and straightforward fitment for replacement applications, making it a versatile and in-demand engine for direct swaps.

While the Mini Cooper S N18B16A 1.6L turbocharged engine is generally more refined and reliable than its predecessor, there are some common weaknesses and service notes buyers should be aware of High-pressure fuel pump (HPFP) failures and fuel injector issues have been reported in some high-mile examples, leading to rough idle or hesitant throttle response if not addressed. 

Carbon buildup on intake valves is also common in direct-injection engines, which can reduce airflow and affect idle quality over time. Additionally, turbocharger wastegate rattle may be noticeable on some units, and oil filter housing gasket leaks can occur as the engine ages.

To keep this engine performing at its best, regular maintenance is essential. Periodic oil and filter changes with high-quality synthetic oil, timely replacement of spark plugs and fuel filters, and careful inspection of the HPFP, injectors, turbocharger, and intake system will help ensure long-lasting performance. 

Addressing minor issues early and following a strict service schedule will help this high-performance engine deliver reliable, spirited driving for years to come.