BMW S58 Engine for Sale | OEM G80 M3 M4 3.0L Twin-Turbo Inline-6

Description

Engine Background

BMW’s S58 is the engine behind the current generation of M cars. It debuted in 2019 in the F97 X3 M and F98 X4 M, then expanded into the G80 M3, G82 M4, and G87 M2 from 2021 onward. It succeeds the S55 that powered the F80/F82 generation M3 and M4, and represents one of the most significant engineering steps M division has taken in its history. Ward’s named it one of the World’s 10 Best Engines in 2023, in the M2 application.

The S58’s engineering brief departed from its predecessor in nearly every critical structural area. Where the S55 used semi-forged internals (forged crank, cast pistons), the S58 carries fully forged internals across the board: a forged crankshaft with spherically ground crankpins, crack-forged connecting rods carried over from the S63TU4 V8, and MAHLE forged pistons with an anti-friction coating. Where the S55 used a conventional cast cylinder head, the S58 uses a 3D-printed cylinder head core that enables coolant channel geometries impossible to produce by casting, transforming thermal management during sustained high-output operation. Compression was dropped from 10.2:1 on the S55 to 9.3:1 on the S58, opening more boost headroom for the larger turbochargers.

The result is a foundation the tuning community has documented at 700-plus hp on stock turbos with basic bolt-ons, and over 1,000 hp on upgraded turbo packages. The dual-chamber oil sump preserves consistent lubrication during high-G track work. The twin mono-scroll turbocharger layout produces quick spool response without the packaging compromise of a single large twin-scroll unit. Many in the community consider the S58 potentially the last great combustion-only BMW M engine, with the electrification transition already shaping M division’s next generation of products.

When Replacement Becomes Necessary

• Cam timing fault codes, often pointing to VANOS actuator or solenoid issues on a high-mileage or under-maintained S58
• Carbon buildup symptoms (rough idle, hesitation at light throttle, reduced throttle response) on this direct-injected engine. Walnut blasting is the standard service.
• Valve cover or oil pan seepage, the standard aging-seal pattern on any modern engine including the S58
• Cooling system seepage at plastic coolant flanges and the expansion tank, which need inspection on higher-mileage examples
• Wastegate rattle at idle, more pronounced on tuned units running higher boost
• Sudden power loss with no obvious code, often a throttle body or intercooler leak on a boosted setup

Known Weak Points

• ECU VIN-linking, the most important buyer consideration: The S58 ECU may be VIN-linked in some configurations and may require BMW dealer programming when a replacement engine is installed. Confirm ECU compatibility with your BMW M specialist before ordering. This is not an engine fault. It is an administrative requirement that, if skipped, produces a no-start after installation.
• Direct injection carbon buildup: The S58 uses high-pressure direct injection. Oil vapor from the PCV system deposits carbon on intake valves over time without the wash effect that port injection provides. Walnut blasting at 50,000 to 75,000 miles is the established service. We note visible carbon indicators where accessible.
• Cooling system aging: The 3D-printed cylinder head channels are a generational improvement, but the surrounding plastic coolant flanges and expansion tank follow the same aging pattern as all BMW cooling systems. Service the full cooling system at installation.
• Specialist installation required: S58 replacement is not standard BMW dealer work. A BMW M specialist with documented S58 experience is required. ECU adaptation, turbocharger reinstallation, and cooling system bleed procedures need specialist knowledge.
• Tuning warranty considerations: Tuned S58s with ECU calibration beyond factory spec may void BMW warranty coverage. For a vehicle still inside the warranty period, verify coverage status before any engine replacement decision.

BMW S58 Power Variants

Three power output levels across the S58’s application range:

What Ships and What Does Not

Direct-Fit Vehicle Applications

The BMW S58 was factory installed in the following vehicles:

The tuning community has begun exploring S58 swaps into earlier BMW M chassis. These are specialist engineering projects that require custom mounts, ECU development, and cooling system integration. Call (240) 306-7051 with your specific project.

Transmission: ZF 8HP 8-speed automatic, the standard pairing on Standard and Competition automatic models. BMW GS7D36SG 7-speed DCT on certain earlier applications. 6-speed manual on select markets and models. Confirm your vehicle’s transmission before ordering.

Not sure if this fits? Call (240) 306-7051. We verify fitment before every order ships.

Search Terms Buyers Use

BMW S58 | S58 engine | G80 M3 engine | BMW M3 engine | S58 3.0L twin turbo | BMW S58 Competition | S58 vs S55 | G82 M4 engine | X3 M engine | BMW M2 S58

Used OEM Versus Specialist Rebuild

Used OEM is effectively the only practical S58 path. The engine is still in production and no factory replacement program exists at standard dealer pricing. Our inspected, documented units represent the most accessible verified S58 replacement available.

A specialist S58 rebuild makes sense for a track build requiring specific internal preparation. BMW M specialists can rebuild the S58 with fresh tolerances and updated components. Call us to discuss what current units look like.

Inspection Workflow

• Full external inspection of accessible engine surfaces, including block, heads, valve cover areas, turbocharger connections, and cooling system flanges
• Output variant confirmed: S58B30O0 (standard 473 hp) or S58B30T0 (Competition 503 hp) documented on every order
• Cooling system plastic flange areas inspected for cracking or seepage
• Carbon buildup assessment at accessible intake areas, with walnut blasting recommendation noted
• Turbocharger oil seal areas inspected where turbos are present
• Mileage documented when available from service records or BMW connected data

Mileage varies by unit. Where available from the donor vehicle we provide it. Where it cannot be confirmed, we disclose this before the order is placed.

Pre-Purchase Buyer Notes

• ECU VIN adaptation before installation: Contact a BMW M specialist and confirm the ECU adaptation procedure before installing any S58. BMW dealer programming may be required to adapt the engine to your vehicle’s VIN. This step is not optional. Skipping it produces a no-start condition.
• Service the cooling system at installation: Replace the expansion tank and inspect all coolant flanges regardless of how they look. The 3D-printed head channels are robust, but the surrounding plastic components age on the same schedule as the rest of the BMW cooling system inventory.
• Walnut blasting at installation: The S58 is direct-injected. Schedule walnut blasting of the intake valves at installation or within the first 10,000 miles to address accumulated carbon deposits.
• Specialist installation is mandatory: The S58 is not a general BMW shop job. Only a BMW M specialist with documented S58 experience should perform this work. Turbocharger reinstallation, ECU adaptation, and cooling system bleed are not standard procedures.
• Tuning potential: The S58 responds exceptionally well to ECU tuning. Stage 1 (downpipe and ECU tune) typically produces 580 to 620 hp. The closed-deck block, fully forged internals, and 9.3:1 compression ratio offer substantial headroom for boost increase.

Why Part Nests

• Output variant confirmed: Standard 473 hp or Competition 503 hp documented before payment
• Cooling system flanges inspected at the known plastic failure point
• Full external inspection documentation before shipment
• ECU VIN adaptation requirement disclosed and explained on every order
• No core return required
• Free freight pallet delivery to every state with specialist M-engine packaging
• 15 day replacement warranty against internal defects
• Call (240) 306-7051 to speak with one of very few suppliers tracking and documenting S58 variants