BMW B38A15M0 1.5L turbocharged engine for sale.

BMW B38A15M0 1.5L turbocharged engine

Specifications and Compatibility

BMW B38A15M0 1.5L turbocharged engine is a  3-cylinder petrol engine is part of BMW’s cutting-edge B-series engine family, engineered for efficiency, lightweight performance, and everyday reliability. As a compact yet powerful engine, the B38A15M0 delivers smooth acceleration, low fuel consumption, and reduced emissions making it a popular choice for both city driving and long-distance comfort. 

Its modern construction incorporates a high-precision direct injection system, variable valve control (Valvetronic), and a fast-spooling single turbocharger, enabling impressive responsiveness despite its smaller displacement.

For customers looking for a high-quality replacement engine, the B38A15M0 remains a top contender thanks to its strong durability and excellent balance of performance and economy.

This 1.5L turbo petrol engine is found in several BMW models, most notably the BMW 118i (F20/F21) and BMW 218i (F22/F23/F45/F46). It is also used in the BMW 318i (F30/F31) and certain MINI Cooper models, depending on ECU mapping and configuration.

Its wide compatibility makes the BMW B38A15M0 1.5L turbocharged engine a suitable replacement choice for customers needing a dependable, fuel-efficient BMW engine that maintains factory-level performance. Whether restoring a 1 Series, 2 Series, or 3 Series, this engine provides strong reliability and excellent driving dynamics.

 Common weaknesses and Maintenance.

Performance-wise, the B38A15M0 produces between 136–140 horsepower with approximately 220 Nm of torque, depending on vehicle model and year. Its 1,499 cc displacement, aluminium block, and low-friction internals help achieve both durability and efficiency. The integrated exhaust manifold improves turbo response, while the water-cooled intercooler ensures optimal combustion temperatures and consistent power delivery. This engine’s compact size also contributes to reduced weight, aiding fuel economy and sharper handling—hallmarks of BMW’s refined engineering.

Despite its strengths, the B38 engine family has a few common weaknesses. Some units experience timing chain stretch at higher mileages, which can lead to rattling noises or poor performance if ignored. Coolant leaks from the thermostat housing or water pump may also occur, especially on vehicles with extensive city driving. Like many modern small-capacity turbo engines, the B38 can develop carbon build-up on intake valves due to direct injection. Some owners also report oil consumption if maintenance intervals are extended beyond BMW’s recommended schedule. Fortunately, these issues are manageable with proper care.

To ensure long-term reliability, routine oil changes with high-quality synthetic oil, timely coolant system inspections, and periodic intake cleaning are highly recommended. With proper maintenance, the BMW B38A15M0 1.5L turbocharged engine delivers excellent longevity, smooth performance, and strong efficiency—making it an ideal choice for anyone seeking a reliable and modern BMW replacement engine.