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Common ModificationsServicing & Maintenance
B58 Engine Specifications
Complete technical specifications for the BMW B58 turbocharged inline-6 engine.
B58 Variants: Gen 1 vs Gen 2 (TU)
- B58B30M0 (Gen 1): 2015-2018 - 335 HP, smaller turbo, standard internals
- B58B30O1 (Gen 2/TU): 2019+ - 382-388 HP, larger turbo, improved cooling
The TU (Technical Update) variant features significant improvements including a larger turbocharger and an upgraded cooling system.
Power Output
| B58B30M0 (Gen 1) Output | 335 HP @ 5,500-6,500 RPM |
| B58B30M0 (Gen 1) Torque | 450 Nm @ 1,380-5,200 RPM |
| B58B30O1 (Gen 2/TU) Output | 382-388 HP @ 5,800-6,500 RPM |
| B58B30O1 (Gen 2/TU) Torque | 500 Nm @ 1,800-5,000 RPM |
| Redline | 7,000 RPM |
Core Specifications
| Engine Block Material | Heat-Treated All Aluminium (AlSiMgCu0.5) |
| Block Deck Design | Closed Deck |
| Cylinder Head Material | Heat-Treated All Aluminium (AlSiMgCu0.5) |
| Cylinder Wall Material | Plasma Arc Wire Spray Coating |
| Crankshaft Material | Forged Steel |
| Connecting Rod Material | Forged Steel |
| Piston Material | Cast Aluminium |
| Bore Spacing | 91 mm |
| Bore Size | 82 mm |
| Displacement | 2,998cc (2.998 L) |
| Stroke | 94.6 mm |
| Compression Ratio | 11.0:1 |
| Connecting Rod Centre to Centre | 144 mm |
| Crankshaft Offset | 0 mm (No Offset) |
Note: B58 uses plasma arc wire spray coating on cylinder walls for reduced weight and improved heat transfer. The closed-deck design provides excellent strength for high-boost applications.
Turbocharger Specifications
| Turbocharger Configuration | Single Twin-Scroll |
| Turbocharger (Gen 1) | Borg Warner B58 |
| Turbocharger (Gen 2/TU) | Larger Borg Warner unit |
| Wastegate Type | Electronic Wastegate (EWG) |
| Peak Boost (Stock) | Approximately 12-17 PSI / 0.8-1.2 bar |
| Intercooler | Air-to-Water (integrated intake manifold) |
Valve & Timing Specifications
| Valves Per Cylinder | 4 (24 total) |
| Intake Valve Diameter | 31.3 mm |
| Exhaust Valve Diameter | 28 mm |
| VANOS | Dual Variable Valve Timing (Intake & Exhaust) |
| Valvetronic | Yes (Variable Valve Lift) |
DME (Engine Control Unit)
| DME Type (Gen 1) | Bosch MG1CS003 |
| DME Type (Gen 2/TU) | Bosch MG1CS201 / MG1CS024 |
| Manufacturer | Bosch |