The BMW S58 is the current flagship inline-six from BMW M GmbH, a twin-turbocharged 3.0L powerplant that defines the modern M3, M4, and M2. Introduced in 2019, it replaced the S55 and represents a significant leap in output, thermal management, and engineering sophistication—all while retaining the beloved I6 layout that M enthusiasts prize.
Engineering & Specs
The S58 is a 3.0L twin mono-scroll turbocharged inline-six built on a closed-deck block for superior high-boost rigidity. Its standout feature is a 3D-printed core cylinder head—a manufacturing first for a series M engine—that enables complex internal cooling passages impossible with conventional casting. Key figures:
- Configuration: 3.0L twin-turbo I6
- Induction: Twin mono-scroll turbochargers
- Output: 473–543 hp
- Torque: 442–479 lb-ft
- Redline: 7,200 rpm
- Years: 2019–present
The highest outputs come from the CS and CSL variants, which push a full 543 hp through revised turbo boost, cooling, and calibration.
Which BMWs Used It
The S58 powers the entire current M lineup of six-cylinder performance cars:
- G80 M3 — sedan
- G82/G83 M4 — coupe and convertible
- F97 X3 M — performance SUV
- F98 X4 M — performance SUV coupe
- G87 M2 — compact M coupe
Not sure which engine sits under your hood? Use our VIN decoder to confirm the exact engine and factory options for any BMW.
Reliability & Ownership Notes
The S58 is a young, robustly engineered engine, and its closed-deck architecture makes it a strong platform for tuning—modest ECU work can unlock substantial gains thanks to the healthy factory hardware margin. As with any high-output turbo M engine, owners should stay disciplined about oil changes with the correct specification, allow proper warm-up before hard driving, and monitor the cooling system given the demands of track use. Because these cars are still relatively new, most examples remain under or near warranty coverage; a documented service history and a clean pre-purchase inspection remain the smartest buying safeguards.
Legacy
The S58 continues M's celebrated inline-six tradition that runs through the S54 and earlier naturally aspirated legends. Where those engines chased revs and throttle response, the S58 combines forced-induction muscle with cutting-edge production techniques to deliver more power than ever from six cylinders. It stands alongside icons like the S65 V8 and the S85 V10 in the broader M canon. Explore more in the BMW DNA encyclopedia.