BMW 3.0L Turbo I6 (B58/N55)

BMW 3.0L Turbo I6 (B58/N55) — every model and year that used this engine (54 models, 1995–present), based on NHTSA VIN build data, with links to prices and reliability.

The modern BMW inline-six family.

3.0L · 6 cylinders · seen in 54 models, 1995–2027

By the numbers

Output range 210–543 hp (median 315 hp). Gasoline: 96%. Based on 890 decoded NHTSA VIN build sheets.

About this engine family

The BMW B58 is a turbocharged straight-six engine, which began production in 2015. The B58 replaced the N55 and was launched in the F30 340i.

In detail

Compared with its BMW N55 predecessor, the B58 features a 20% increase in boost pressure, a closed-deck engine block design, an increase in compression ratio to 11.0:1 and a slight increase in displacement from with added weight of . The turbocharger is a twin-scroll design, for more efficient power delivery with less turbo lag and more power than a conventional single turbocharger, as well as for weight and space saving benefits.

The intercooler - a water-to-air design - is integrated into the intake plenum, to reduce the volume of air between the turbocharger and the cylinders. The B58, like its predecessor the N55, features direct fuel injection, variable valve timing (called double VANOS by BMW), and variable valve lift (called Valvetronic by BMW). The redline remains at 7,000 rpm, the bore and the stroke is . The B58 also features an engine-mounted heat encapsulation system to reduce engine wear and emissions during start-up.

For durability and longevity, the rotating assembly has a forged steel crankshaft and forged connecting rods. As a part of BMW's modular engine family, the crankcase is a completely new design identical to the B57 diesel version, engineered as both a gasoline and diesel engine in one common part. The closed deck crankcase is equipped with a completely new structure which can be identified by a complex array of ribs on the exhaust and intake side and an additional reinforcement frame on the oil pump side.

The engine was revised in 2018, dubbed "B58TU", with notable changes and improvements. The fuel system was updated with 75% increased pressure with updated high pressure fuel pump and injectors, a new particulate filter located on the exhaust system's midpipe, a new one-part timing chain as opposed to the earlier two-part, and new separate cooling circuits for the cylinder head and crankcase (using an extra split-cooling valve).

For weight savings, the crankcase wall thickness and forged crankshaft were optimized, and the exhaust manifold was integrated into the cylinder head housing. Another engine revision in 2022 added port fuel injection to complement the existing direct injection system for better emissions and functionality. Applications: 2023–present G70 735i (some markets) 2021–present G30 545e 2022–present Ineos Grenadier Applications: 2015–2019 F30/F31/F34 340i 2016–2019 F32/F33/F36 440i 2016–2019 G11/G12 740i/Li Applications: 2016–2019 F20/F21 M140i 2016–2021 F22/F23 M240i 2017–2019 G30/G31 540i This version was used for 3-/4-Series with the "M Performance Power and Sound Kit".

Source: Wikipedia — BMW B58, CC BY-SA.

Models that used this engine

Model Years with this engine Fuel VIN builds seen
328I 2007–2013 Gasoline 81
X5 2001–2026 Gasoline 63
335I 2007–2016 Gasoline 50
M4 2015–2027 Gasoline 45
Z4 2003–2026 Gasoline 43
840I 2020–2026 Gasoline 40
640I 2012–2019 Gasoline 37
535I 2008–2017 Gasoline 37
M240I 2017–2027 Gasoline 35
X3 2005–2026 Gasoline 35
M440I 2021–2027 Gasoline 34
440I 2017–2020 Gasoline 30
X6 2008–2027 Gasoline 30
M3 1995–2027 Gasoline 28
740I 2011–2027 Gasoline 27
128I 2008–2013 Gasoline 24
340I 2016–2024 Gasoline 22
540I 2017–2027 Gasoline 21
M340I 2020–2026 Gasoline 21
M2 2016–2027 Gasoline 15
435I 2014–2016 Gasoline 15
X4 2016–2025 Gasoline 15

Engine usage derived from NHTSA VIN build data (displacement + cylinder configuration). Model links lead to prices, generations and reliability.

For sale with this engine