Powertrain families
S58B30T0
2019–2025

X M / XM → F97/F98 → Sports Activity Coupe
How this generation came about, what made it different and how the selected sports activity coupe fits into the family.
F97 X3 M and F98 X4 M were the first full M models in BMW's mid-size X range. Both introduced the S58 twin-turbo inline-six to production and paired it with eight-speed M Steptronic, M xDrive and an Active M Differential; the X3 SAV and X4 SAC remain separate bodies with different roofline, cargo space and dimensions.
Launch cars were offered as standard and Competition models with different output. The 2021 update concentrated many markets on Competition, increased torque and revised design, controls and chassis calibration; launch and LCI figures therefore require production-date boundaries.
The two body programmes did not end together: X3 M followed the G01 lifecycle while X4 M continued with G02 into 2025. X3 M40i/X4 M40i are M Performance models rather than full M cars and must not appear as F97/F98 modifications.
Dimensions can change with body, market and model year, so this page keeps them tied to the exact factory branch.
| Body | Code | Production | Doors / seats | Length | Luggage |
|---|---|---|---|---|---|
| Sports Activity Vehicle | F97 | 2019–2025 | 5-door SAV / 5 | 4,726 mm | 550–1,600 L |
| Sports Activity Coupe | F98 | 2019–2025 | 5-door SAC / 5 | 4,758 mm | 525–1,430 L |
The generation could span very different engines and drivetrains. The table keeps output, gearbox, market and production period together.
Documented sports activity coupe applications; output and availability remain market- and model-year-specific.
| Model | Years | Engine | Output | Transmission | Drive | Market | Source |
|---|---|---|---|---|---|---|---|
| X3 M / X4 M | 2019–2021 | S58B30T0 twin-turbo inline-six | 480 PS / 473 hp US | 8AT | M xDrive | Global range | The new BMW X3 M Competition and BMW X4 M Competition |
| X3 M Competition / X4 M Competition | 2019–2025 | S58B30T0 twin-turbo inline-six | 510 PS / 503 hp US | 8AT | M xDrive | Global range | The new BMW X3 M Competition and BMW X4 M Competition |
S58B30T0
X3 M · X3 M Competition · X4 M · X4 M Competition
Engine, cooling, exhaust, software and transmission form a distinct M or ALPINA specification rather than an option package on the base model.
Where diesels were offered, output, injection generation and emissions hardware are recorded market by market.
Mild- and plug-in hybrids are separate derivatives; combustion-engine output must not be substituted for total system output.
Gearboxes, driven wheels and final-drive hardware changed with engine, market and production date.
Gearbox type and unit code follow engine, market and production date. Gear count alone does not identify the transmission.
Catalog architecture: X family · front- or all-wheel drive by derivative. All-wheel-drive availability and hardware remain derivative-specific.
Ratio, differential type and electronic control belong to the exact derivative and can differ on performance models.
Suspension, brakes, safety systems and electronics evolved across the range, even when cars shared the same basic architecture.
The important launches, additions and updates did not always happen at the same time for every body or market.
BMW launched standard and Competition derivatives with the new S58.
Regional line-ups established different standard/Competition availability.
Higher torque, revised chassis calibration and new design/electronics entered production.
X3 M ended with its donor cycle before the X4 M body programme concluded.
Performance models, option packages and regional editions may look related, but their engineering and production identity can be very different.
X M / XM F97 is a distinct F97/F98 body branch. A five-door high-riding body combining a flexible cargo area with the road-focused dynamics of BMW’s X family. Engines/drive: S58B30T0.
X M / XM F98 is a distinct F97/F98 body branch. A coupe-roofed X model that trades some rear packaging for a lower, more sporting silhouette. Engines/drive: S58B30T0.
Cabin technology and standard equipment changed by country and year; a build sheet remains the best guide to one individual car.
A practical starting point for inspecting and maintaining a car from this generation — not a diagnosis of an individual example.
| Item | Interval / trigger | Catalog note |
|---|---|---|
| Engine oil & filter | CBS/factory schedule; time and mileage for historic cars | Oil approval follows the exact engine and market. |
| Brake fluid | Time-based factory schedule | ABS/DSC-compatible bleeding procedure is required after hydraulic work. |
| Coolant | Factory schedule and condition | Fluid specification and bleeding method are generation-specific. |
| Transmission & final drives | Unit type and operating conditions | Use the exact approved fluid; no one interval fits every derivative. |
The badge and registration year tell only part of the story; production date, body code, engine and factory options complete it.
The story is mapped through English Wikipedia and its bibliography, then important dates and technical claims are checked against BMW material.
Secondary F97 launch, engine, update and production overview.
Secondary F98 body and lifecycle overview.
Factory documentation for the 2021 S58, torque, chassis and equipment update.