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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]

BMW B58
B58B30M0 in a F30 340i
Overview
Manufacturer	BMW
Production	2015–present
Layout
Configuration	Straight-six
Displacement	3.0 L (2,998 cc)
Cylinder bore	82 mm (3.23 in)
Piston stroke	94.6 mm (3.72 in)
Block material	Closed-deck aluminium
Head material	Aluminium
Valvetrain	DOHC 4 valves x cyl. with Valvetronic and Double VANOS
Timing drive system	Chain
Compression ratio	11.0:1
RPM range
Redline	7,000 rpm
Combustion
Supercharger	48V electrical systems Starter Generator (2020; some Model)
Turbocharger	Single twin-scroll with air-to-liquid Intercooler / Twin-Turbo with air-to-liquid Intercooler (S58)
Fuel system	Direct injection
Management	Bosch Di-Motronic
Fuel type	Petrol
Oil system	Wet sump with water heat exchanger
Cooling system	Water-cooled
Output
Power output	240–285 kW (322–382 hp)
Torque output	450–500 N⋅m (332–369 lb⋅ft)
Dimensions
Dry weight	139 kg (306 lb)
Chronology
Predecessor	BMW N55

The B58 is part of BMW's new 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 World's 10 Best Engines in 2016 (installed in the 340i and 440i),[4] 2016, 2018, and 2022 (M240i),[5] X3 and X4 M40i, Z4 M40i, 2019 (X5)[6] and 2019(M340i).[7]

The S58 engine, which was released in early 2019, is the high performance version of the B58.[8][9]

Design

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 2,979 to 2,998 cc (181.8 to 182.9 cu in) with added weight of 8 kg (18 lb).

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.[10]

As per the N55, the B58 also features a single twin-scroll turbo, direct fuel injection, variable valve timing (called double Vanos by BMW), variable valve lift (called Valvetronic by BMW).[11][12] The redline remains at 7,000 rpm, the bore and the stroke is 82 mm × 94.6 mm (3.23 in × 3.72 in).

The B58 also features an engine-mounted heat encapsulation system to reduce engine wear and emissions during start-up.[13]

As a part of BMW's new modular engine family, the crankcase is a completely new design identical to the B57 diesel version,[14] 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.

Models

Engine	Power	Torque	Years
B58B30M0	240 kW (322 hp) at 5,500–6,500 rpm	450 N⋅m (332 lb⋅ft) at 1,380–5,000 rpm	2015–2019
	250 kW (335 hp) at 5,500 rpm	500 N⋅m (369 lb⋅ft) at 1,520–4,500 rpm	2016–2021
	250 kW (335 hp) at 5,500-6,500 rpm	450 N⋅m (332 lb⋅ft) at 1,380–5,200 rpm	2017–2019
	265 kW (355 hp) at 5,500–6,500 rpm	500 N⋅m (369 lb⋅ft) at 1,520–4,800 rpm	2016–2019
B58B30M1	250 kW (335 hp) at 5,000–6,500 rpm	500 N⋅m (369 lb⋅ft) at 1,600–4,500 rpm	2018–
B58B30C
B58B30O1	285 kW (382 hp) at 5,000–6,500 rpm
S58B30T0	338 kW (453 hp) at 6,250 rpm	550 N⋅m (406 lb⋅ft) at 2,600–5,950 rpm	2023–
	353 kW (473 hp) at 6,250 rpm		2020–
		620 N⋅m (457 lb⋅ft) at 2,600–5,950 rpm	2019–
	375 kW (503 hp) at 6,250 rpm	650 N⋅m (479 lb⋅ft) at 2,600–5,950 rpm

B58B30M0: 240 kW (322 HP) version

Applications:

• 2015–2019 F30/F31/F34 340i
• 2016–2019 F32/F33/F36 440i
• 2016–2019 G11/G12 740i/Li

B58B30M0: 250 kW (335 HP) version

Applications:

• 2016–2019 F20/F21 M140i
• 2016–2021 F22/F23 M240i[15]

B58B30M0: 250 kW (335 HP) version

Applications:

• 2017–2019 G30/G31 540i[16]
• 2017–2019 G32 640i

B58B30M0: 265 kW (355 HP) version

This version was used for 3-/4-Series with the "M Performance Power and Sound Kit".

Applications:

• 2016-2019 F30/F31/F34 340i[17]
• 2016-2019 F32/F33/F36 440i
• 2017–2019 G01 X3 M40i[18]
• 2018–2019 G02 X4 M40i

B58B30M1: 250 kW (335 HP)

Applications:

• 2018–present G05 X5 xDrive40i/sDrive40i[19]
• 2018–present G07 X7 xDrive40i
• 2018–present G29 Z4 M40i (in countries subject to EU emissions standards)[20]
• 2020–present G30/G31 540i
• 2020–present G32 640i
• 2020–present G06 X6 xDrive40i
• 2020–present G11/G12 740i
• 2019–present G14/G15/G16 840i
• 2020 Morgan Plus Six[21]

B58B30C: 250 kW (335 HP)

• 2020 Toyota Supra[22]

B58B30O1: 285 kW (382 HP)

Applications:

• 2018–present G29 Z4 M40i (in countries not subject to EU emissions standards)
• 2019–present G20 M340i
• 2019–present G21 M340i
• 2020–present G01 X3 M40i
• 2019–present G02 X4 M40i
• 2020–present G22 M440i
• 2021–present Toyota Supra[23] (in countries not subject to EU emissions standards)
• 2021–present G42 M240i

S58

BMW S58 engine
Overview
Production	2019–present
Layout
Configuration	Straight-six
Displacement	3.0 L (2,993 cc)
Cylinder bore	84 mm (3.3 in)
Piston stroke	90 mm (3.5 in)
Valvetrain	DOHC w/ VVT & VVL
Compression ratio	9.3:1
Combustion
Turbocharger	Twin-turbo
Fuel type	Petrol
Output
Power output	338–375 kW (453–503 hp)
Torque output	550–650 N⋅m (406–479 lb⋅ft)
Chronology
Predecessor	BMW S55

The S58 engine is the high performance version of the B58 engine. It was introduced in the F97 X3 M and F98 X4 M, marking the first time a stand-alone M model was produced for the X3 and X4.[24]

The S58 features twin turbos, a redline at 7,200 rpm with the bore and the stroke at 84 mm × 90 mm (3.31 in × 3.54 in).

S58B30T0: 338 kW (453 HP)

• 2023–present G87 M2

S58B30T0: 353 kW (473 HP)

Applications:

• 2019–present F97 X3 M
• 2019–present F98 X4 M
• 2021–present G80 M3[25]
• 2021–present G82 M4

S58B30T0: 375 kW (503 HP)

Applications:

• 2019–present F97 X3 M Competition
• 2019–present F98 X4 M Competition
• 2021–present G80 M3 Competition
• 2021–present G82 M4 Competition

References

На других языках

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[de] BMW B58

Der BMW B58 ist ein Reihensechszylinder-Ottomotor des Automobilherstellers BMW. Gemeinsam mit dem B38 (Reihendreizylindermotor), B48 (Reihenvierzylindermotor) und den drei Dieselmotoren B37 (Dreizylinder), B47 (Vierzylinder) und B57 (Sechszylinder) gehört der B58 zu den neuesten Baukastenmotoren von BMW. Er erschien 2015.

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- [en] BMW B58

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[it] BMW B58

La sigla BMW B58 (per esteso B58B30) identifica un motore a scoppio sovralimentato a benzina prodotto a partire dal 2015 dalla casa automobilistica tedesca BMW.

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