The BMW N55 is a turbocharged straight-six petrol (gasoline) engine that began production in 2009. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.

Jan 7, 2023 · In this ultimate N55 engine guide, we’ll cover everything you need to know about the 3.0L turbocharged inline 6, including N55 engine specs, popular N55 engine modifications, and N55 reliability.

Dec 12, 2023 · The N55 engine is a 3.0-liter inline-six turbocharged engine that produces from 300 horsepower to 445 horsepower in ALPINA models.

Oct 3, 2024 · The N55 engine, a turbocharged inline-six, has been a core part of BMW’s lineup, powering various models with different performance profiles. For instance, the engine propels cars like the E90/E91/E92/E93 335i and the E82/E88 135i with paramount precision, leveraging the balance of an inline-six.

Mar 28, 2025 · Like its predecessor, the N55 is a turbocharged 3.0L inline-6 cylinder engine utilizing direct fuel injection. It was available in just about every chassis BMW used during its life, including the F01 7-series, F16 X6, and the F87 M2. These engines span back to 1933, when BMW introduced its first automotive inline-6, the M78.

Feb 25, 2025 · The N55 engine produces up to 335 hp and 332 lb-ft of torque, as confirmed by BMW USA and various automotive publications such as Car and Driver. Independent tests …

Oct 12, 2022 · I'm in the market for a second or third gen X5 and am leaning towards the Xdrive35i models. How's the reliability and what are the common problems? My budget is $20-35k. N55 is pretty reliable. You should be okay. Just keep a few dollars aside for little things that you should normally prepare for on any other vehicle aswell.

Mar 27, 2025 · The N55 engine has proven itself as a versatile and powerful option across a range of BMW models. From sporty coupes to practical SUVs, it delivers a driving experience …

Sep 19, 2020 · To cover some basic information, the BMW N55 is an all-aluminum 3.0L straight-six engine with dual overhead cams, variable valve timing, and variable valve lift. Bore measures at 84mm and stroke at 89.6mm. This brings the total displacement up to 2,979cc.

Feb 24, 2025 · The N55 engine consistently delivers power outputs ranging from 300 to 335 hp, as confirmed by BMW USA and independent automotive reviews. Torque ratings typically hover around 300 lb-ft, providing robust acceleration and responsiveness, as …