M440i Bmw B58

BMW is updating its B58 six-cylinder engine for the M240i, M340i, and M440i. Power rises to 386 hp with more torque, while fuel consumption drops. Here's what's new for November 2025.

The BMW B58 is a turbocharged straight-six engine, which began production in 2015. [1] The B58 replaced the N55 and was launched in the F30 340i. [2] The B58 is part of BMW's modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.

[3] The B58 engine was named to Ward's World's 10 Best Engines five times, in 2016 (installed. BMW M340i and M340d Part of the latest G20/G21 generation 3 Series range, the M340i sedans and wagons produce 382 horsepower and 369 lb-ft of torque from their B58 engine, rocketing them from 0-60 mph in under 4.4 seconds. Crisp steering and balanced handling helps translate all that muscle into grins.

BMW M440i Essentially a coupe version of the 3 Series, the gorgeous new G22 BMW M440i also. Transform your B58 powered BMW M240, M340, M440 into a 475 wheel horsepower beast with our simple bolt-on performance package! Save $278.99 when you purchase this package together. BMW upgrades B58 3.0-liter TwinPower Turbo straight-six; M340i now gets 392.

The BMW M440i comes equipped with a sophisticated and high-performance engine that exemplifies BMW's commitment to blending luxury with sporty dynamics. At its core, this model features a 3.0-liter turbocharged inline-six engine, often referred to by BMW as the B58 engine. BMW changed the name of coupes to the 4 series when it introduced the F chassis in 2013.

As you can see, if we compare every 335i and 340i model that is offered, there is a lot to unpack. The older 335i vehicles have both the N54 and N55 engine, while the more recent 340i variants come with the B58 or an upgraded B58TU. The B58 engine has been utilized across a variety of BMW models, showcasing its versatility and adaptability.

Below is a list of notable vehicles that feature this remarkable engine: BMW 3 Series (G20) - The B58 powers the 340i variant, delivering exhilarating performance and a dynamic driving experience. BMW 4 Series (G22) - Similar to the 3 Series, the 440i and M440i models benefit from. BMW introduced the B-series of modular engines in 2016.

But there was a major update done in 2018 and then another for 2020. The B46 4-cylinder is pretty simple with only minor updates. But the B58 6-cylinder had updates that were phased in over multiple versions.

B58A being the original. B58C having some major changes (but only used on a few. BMW B58 General Information FAQ's Below is some general FAQ's including specs, design, and more about the BMW B58 engine.

What is the BMW B58? BMW's B58 engine is a 3.0L inline-6 turbocharged, direct injection gasoline engine produced from 2016-present. As with the N55, the B58 engine uses a single twin.