The BMW M4 is powered by the BMW S58 3.0-liter twin-turbocharged inline-six engine, producing between 473 and 543 horsepower depending on the variant[1]. The base M4 delivers 473 hp and 406 lb-ft of torque, while the M4 Competition generates 503 hp (523 hp with xDrive) and 479 lb-ft of torque[2]. The most powerful street-legal version, the M4 CSL, produces 543 hp and 479 lb-ft of torque[3].
The S58 is BMW M Division's high-performance inline-six engine, first introduced in the F97 X3 M and F98 X4 M before powering the current G82 M4[4].
| Specification | Value |
|---|---|
| Engine Code | S58B30T0[4] |
| Displacement | 2,993 cc (3.0L)[2] |
| Configuration | Inline 6-cylinder[2] |
| Valvetrain | 24-valve DOHC[2] |
| Turbocharging | Twin mono-scroll turbochargers[4] |
| Compression Ratio | 9.3:1[4] |
| Redline | 7,200 rpm[5] |
| Fuel System | Direct injection[2] |
The S58 features a closed-deck aluminum cylinder block, forged chrome molybdenum crankshaft, forged aluminum pistons, and forged steel connecting rods[6]. These components provide exceptional strength for handling high boost pressures and track-focused driving.
BMW offers the S58 engine in multiple states of tune across the M4 lineup[1]:
| Model | Horsepower | Torque | 0-60 mph | Top Speed |
|---|---|---|---|---|
| M4 (base) | 473 hp @ 6,250 rpm[1] | 406 lb-ft[1] | 4.1 sec[7] | 155 mph (limited) |
| M4 Competition RWD | 503 hp @ 6,250 rpm[2] | 479 lb-ft @ 2,750 rpm[2] | 3.5 sec | 155 mph (limited) |
| M4 Competition xDrive | 523 hp[8] | 479 lb-ft[6] | 2.8 sec[9] | 155 mph (limited) |
| M4 CS | 543 hp @ 6,250 rpm[10] | 479 lb-ft @ 2,750 rpm[10] | 3.2 sec[10] | 188 mph[10] |
| M4 CSL | 550 hp (405 kW)[3] | 479 lb-ft | 3.4 sec | 191 mph |
The 2025 model year brought a power increase to the Competition xDrive variant, raising output from 503 hp to 523 hp[8].
For more M Division information, see our BMW M3 and BMW M5 guides.
The S58 replaced the S55 engine from the previous-generation F82 M4[5]:
| Specification | S55 (F82 M4) | S58 (G82 M4) |
|---|---|---|
| Displacement | 3.0L | 3.0L |
| Configuration | Inline-6 Twin-Turbo | Inline-6 Twin-Turbo |
| Base Power | 425 hp[5] | 473 hp[1] |
| Base Torque | 406 lb-ft | 406 lb-ft |
| Competition Power | 444 hp | 503 hp |
| Cylinder Block | Open-deck | Closed-deck[6] |
| Turbochargers | Twin mono-scroll | Twin mono-scroll |
| Cooling | Standard | Enhanced 3D-printed head[4] |
The S58 represents a 48-hp increase over the base S55 while improving responsiveness and high-RPM performance[5]. The closed-deck construction provides greater rigidity for handling increased boost pressures.
The S58 incorporates BMW's latest TwinPower Turbo technology, which includes[4]:
The S58 features a 3D-printed cylinder head cooling system that provides more efficient coolant flow than traditionally manufactured components[4]. This technology allows the engine to sustain high output during extended track sessions without heat soak.
Unlike the S55, the S58 uses fully forged internals throughout[6]:
These components enable the engine to handle significant power increases through tuning while maintaining reliability.
Independent testing has validated BMW's performance claims across M4 variants[11]:
| Test | Result | Source |
|---|---|---|
| M4 (manual) 0-60 mph | 4.4 sec | Edmunds[11] |
| M4 (manual) quarter mile | 12.4 sec @ 115.8 mph | Edmunds[11] |
| M4 Competition xDrive Conv. 0-60 | 3.2 sec | Motor Trend[12] |
| M4 Competition xDrive Conv. quarter mile | 11.3 sec @ 122.8 mph | Motor Trend[12] |
| M4 CS 0-62 mph | 3.4 sec | BMW claimed[10] |
The M4 Competition with xDrive all-wheel drive delivers the quickest acceleration due to superior traction, while the rear-wheel-drive manual offers a more engaging driving experience at the expense of outright speed[1].
The S58 engine pairs with different transmissions depending on the M4 variant[1]:
| Model | Available Transmissions | Drivetrain |
|---|---|---|
| M4 (base) | 6-speed manual | RWD only[1] |
| M4 Competition | 8-speed M Steptronic automatic | RWD or xDrive[1] |
| M4 CS | 8-speed M Steptronic automatic | xDrive only[10] |
| M4 CSL | 8-speed M Steptronic automatic | RWD only[3] |
The 6-speed manual transmission is exclusive to the base M4 with 473 hp and provides the most direct connection between driver and engine[1].
The S58 has proven generally reliable, though owners have reported several common issues worth monitoring[13]:
| Issue | Prevalence | Symptoms |
|---|---|---|
| Oil consumption | 15-20% of owners[13] | Frequent top-ups needed |
| Oil leaks | 10-15% of owners[13] | Visible spots, low level warnings |
| Heat management | Variable[13] | Overheating during extended track use |
| VANOS timing issues | Rare[13] | Power loss, rough running |
Proper maintenance using BMW-approved synthetic oil (0W-30 or 0W-40) and adherence to service intervals helps mitigate these concerns[13]. The S58 is considered more robust than its S55 predecessor due to the closed-deck construction and forged internals[4].
For detailed maintenance information, see our BMW maintenance cost guide.
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