BMW B46 engine Price range: $3,000.00 through $6,500.00Select options
BMW B46 engine
The BMW B46 engine is a 2.0-liter turbocharged inline-four gasoline engine designed to deliver an excellent combination of power, efficiency, and low emissions. Built primarily for U.S.-market BMW models, it features advanced technologies such as TwinPower Turbo, direct fuel injection, Valvetronic, and Double-VANOS variable valve timing. Producing up to 255 horsepower and 295 lb-ft of torque, the B46 offers strong acceleration, smooth performance, and impressive fuel economy. Its durable design, refined operation, and compliance with strict SULEV emissions standards have made it a reliable and popular choice for both daily driving and performance enthusiasts.
In Stock
$3,000.00 – $6,500.00Price range: $3,000.00 through $6,500.00
The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.
SKU: BMW-B46
Category: Used Engine
Tags: B46 Engine, BMW 2.0L Turbo Engine, BMW B46 Engine, BMW B46B20 Engine, BMW TwinPower Turbo Engine, Low Mileage BMW B46 Engine, OEM BMW B46 Engine, Quality Tested BMW Engine, Rebuilt BMW B46 Engine, Remanufactured BMW B46 Engine, Replacement BMW B46 Engine, Used BMW B46 Engine
Brand: BMW
Additional Information
| Brand | BMW |
|---|---|
| Conditions | Remanufactured, Used |
| Miles | 70000-130000 |
| Year Compatibility | 2016-2025 |
| Verified | Tried & Tested |
| Warranty | Up to 3 Months |
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Sepecifications
The BMW B46 engine is a 2.0-liter turbocharged four-cylinder gasoline engine that offers a great balance of power, fuel efficiency, and reliability. It was mainly developed for BMW models sold in the U.S. and uses advanced technologies like TwinPower Turbo, High Precision Direct Injection, Valvetronic, and Double-VANOS to deliver smooth performance, quick acceleration, and excellent fuel economy. The engine produces up to 255 horsepower and 295 lb-ft (400 Nm) of torque, giving it strong pulling power at low speeds and responsive performance on both city roads and highways.
Its lightweight aluminum engine block and cylinder head help reduce overall weight while improving durability and heat management. The B46 engine is designed to meet strict Super Ultra-Low Emissions Vehicle (SULEV) standards, making it both environmentally friendly and efficient. Known for its smooth operation and dependable performance, it has earned a strong reputation among BMW owners.Β
Engine Variants
B46O0 (Original)
The B46O0 is the original version of the BMW B46 engine, featuring a 2.0-liter turbocharged inline-four configuration. It produces 255 hp and 295 lb-ft (400 Nm) of torque, making it the standard powerplant for many BMW 30i models, including the 330i and X3 xDrive30i. It is known for its smooth performance, strong mid-range power, and excellent fuel efficiency.
B46A20M0
The B46A20M0 is a transversely mounted 2.0-liter turbocharged inline-four engine developed for front-wheel-drive and all-wheel-drive BMW and MINI models. It delivers 231 hp and 258 lb-ft (350 Nm) of torque, providing responsive acceleration while maximizing packaging efficiency for compact vehicle platforms.
B46B20B
The B46B20B is a longitudinally mounted 2.0-liter turbocharged engine designed primarily for BMW xDrive models. While output varies depending on the application, it typically produces 248β255 hp and 258β295 lb-ft (350β400 Nm) of torque. This variant is optimized for all-wheel-drive performance, refined drivability, and dependable everyday use.
B46TU (Technical Update)
The B46TU (Technical Update) is the revised version of the B46 engine, retaining the 2.0-liter turbocharged inline-four architecture while incorporating improved thermal management, updated engine controls, and enhanced emissions systems. Depending on the vehicle, it produces 248β255 hp and 258β295 lb-ft (350β400 Nm) of torque, offering better efficiency, reduced emissions, and improved long-term reliability.
Frequently Asked Questions
What is the BMW B46 engine?
The BMW B46 is a 2.0-liter turbocharged inline-four gasoline engine developed primarily for U.S.-market BMW models. It is designed to meet strict SULEV emissions standards while delivering excellent performance, fuel efficiency, and reliability.
How much horsepower does the BMW B46 produce?
Depending on the model and variant, the B46 produces up to 255 horsepower and 295 lb-ft (400 Nm) of torque.
What vehicles use the BMW B46 engine?
The B46 powers a variety of BMW models, including the 330i, 430i, 530i, X1, X2, X3, X4, Z4, and select MINI Cooper S models sold in the U.S. market.
Is the BMW B46 engine turbocharged?
Yes, the B46 features BMW’s TwinPower Turbo system with a twin-scroll turbocharger, providing quick spool-up, improved efficiency, and strong low-end torque.
What fuel does the BMW B46 require?
BMW recommends premium unleaded gasoline (91 AKI or higher) to achieve optimal performance, fuel efficiency, and engine longevity.
What are the common issues with the BMW B46 engine?
Although generally dependable, some owners have reported occasional issues with the PCV system, coolant leaks, ignition coils, and carbon buildup over high mileage. Regular maintenance helps prevent most of these problems.
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