A series of 6-cylinder BMW B58B30 engines with a volume of 3.0 liters has been assembled in Munich since 2015 and put on charged modifications of rear- and all-wheel drive models of the German concern. There are two generations of such engines and the line of S58 sports units created on their basis.
B58 are engines with an aluminum block and plasma sprayed steel on the cylinder walls, an aluminum 24-valve cylinder head with hydraulic lifters, a direct fuel injection system, Vanos phase shifters on two camshafts, a Valvetronic system and a timing chain drive. These engines are supercharged by a Mahle/Bosch twin-scroll turbocharger with an intercooler. It is also worth noting that, unlike the B38 and B48 units, there are no balancing shafts here.
In 2018, an updated version appeared, known in the technical literature as B58B30TU. This power unit is distinguished by a simplified timing drive with one chain instead of two previously, a lightweight crankshaft, a new injection system with pressure increased from 200 to 350 bar, and an exhaust manifold built into the block head. As a result, the weight decreased by 6 kg.
There are three families of such motors, with B58B30M1 and B58B30O1 called B58B30TU.
B58B30M0 (326 – 340 hp / 450 – 500 Nm) engine was installed on:
- BMW 1-Series F20 in 2016 – 2019;
- BMW 2-Series F22 in 2016 – 2021;
- BMW 3-Series F30 in 2015 – 2018; 3-Series F34 in 2016 – 2020;
- BMW 4-Series F32 in 2016 – 2021;
- BMW 5-Series G30 in 2017 – 2020;
- BMW 6-Series G32 in 2017 – 2020;
- BMW 7-Series G11 in 2015 – 2018.
B58B30M1 (333 – 340 hp / 450 – 500 Nm) engine was installed on:
- BMW 5-Series G30 since 2020;
- BMW 6-Series G32 since 2020;
- BMW 8-Series G15 since 2019;
- BMW X5 G05 since 2018;
- BMW X6 G06 since 2019;
- BMW X7 G07 since 2019;
- BMW Z4 G29 since 2019.
B58B30O1 (360 – 374 hp / 500 Nm) engine was installed on:
- BMW 2-Series G42 since 2021;
- BMW 3-Series G20 since 2019;
- BMW 4-Series G22 since 2020;
- BMW X3 G01 since 2018;
- BMW X4 G02 since 2018.
Specifications
| Production years | since 2015 |
| Displacement, cc | 2998 |
| Fuel system | direct injection |
| Power output, hp | 326 – 388 |
| Torque output, Nm | 450 – 500 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 94.6 |
| Compression ratio | 11.0 |
| Features | Valvetronic |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Vanos on two camshafts |
| Turbocharging | Twin-scroll Mahle/Bosch turbocharger with intercooler |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 139 |
Disadvantages of the B58B30 engine
- Most of the complaints on the specialized forums are related to a decrease in the coolant level. The exact cause is unknown, but sometimes replacing the expansion tank cap helps.
- It’s a pretty hot engine and blows head gaskets regularly. Usually, a strong smell of burnt oil appears immediately, and often smoke.
- Like most gasoline direct injection engines, B58 engines often suffer from floating engine speeds due to carbon deposits on the intake valves.
- Rarer problems here are related to the Vanos phase shifters, the canister valve and the oil filter, which falls apart when replaced, and it is not so easy to get it.
