| BMW B58 | |
|---|---|
 B58B30O1 in a G22 M440i | |
| 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) |
| Cylinder block material | Closed-deck aluminium |
| Cylinder head material | Aluminum |
| Valvetrain | DOHC 4 valves x cyl. with Valvetronic and Double VANOS |
| Valvetrain drive system | Chain |
| Compression ratio | 11.0:1 |
| RPM range | |
| Max. engine speed | 7,000 rpm |
| Combustion | |
| Supercharger | 48V electrical systems Starter Generator (2020; some models) |
| Turbocharger | Single twin-scroll turbocharger with air-to-liquid intercooler |
| 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 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 four times, in 2016 (installed in the 340i),[4] 2017 (M240i),[5] 2019 (X5)[6] and 2020(M340i).[7]
The S58 engine, which was released in early 2019, is the high-performance version of the B58.[8][9] It was named to Ward's World's 10 Best Engines in 2023 (installed in the M2).[10]
- ^ DeMattia, Nico (28 October 2015). "BMW's N55 engine will be missed, but the new B58 might be even better". BMWBlog. Retrieved 20 May 2016.
- ^ "BMW F30 LCI 340i". www.paultan.org. Archived from the original on 2016-06-10. Retrieved 2016-05-20.
- ^ Meiners, Jens (22 April 2011). "BMW's New Three-, Four-, and Six-Cylinder Engine Family Detailed". CARandDriver. Archived from the original on 12 May 2016. Retrieved 21 May 2016.
- ^ Murphy, Tom (10 December 2015). "Electrics Charge Up 10 Best Engines List". wardsauto.com. Archived from the original on 13 January 2016. Retrieved 16 May 2020.
- ^ Murphy, Tom (12 December 2016). "Seven Turbos, Three Hybrids Share Wards 10 Best Engines Honors". wardsauto.com. Archived from the original on 13 December 2016. Retrieved 16 May 2020.
- ^ Murphy, Tom (14 December 2018). "2019 Wards 10 Best Engines: Gasoline, Diesel, Electrification Honored". wardsauto.com. Archived from the original on 13 December 2018. Retrieved 16 May 2020.
- ^ Murphy, Tom (20 December 2019). "All-Inclusive List for 2020 Wards 10 Best Engines & Propulsion Systems". wardsauto.com. Archived from the original on 20 December 2019. Retrieved 16 May 2020.
- ^ "BMW F97 X3 M launching in 2019 with new S58 engine and 450 horsepower". www.bmwblog.com. 13 March 2017. Retrieved 28 December 2017.
- ^ "BMW Developing S58 Engine as S55 Successor, Will Debut in 2019 X3 M". www.autoevolution.com. 18 March 2017. Archived from the original on 29 December 2017. Retrieved 28 December 2017.
- ^ "WardsAuto Names Wards 10 Best Engines & Propulsion Systems Winners for 2023" (PDF). WardsAuto. September 14, 2023.