The Porsche MDA.BA is a 4,194 cc, naturally aspirated flat — six petrol engine produced between 2022 and 2025. It features direct fuel injection, DOHC with variable valve timing (VarioCam Plus), and a dry‑sump lubrication system. In standard form it delivers 257–265 kW (350–360 PS) and 420–430 Nm of torque, engineered for linear power delivery and acoustic purity in entry — level 911 applications.
Fitted exclusively to the 992 — generation 911 Carrera and Carrera Cabriol…
All production years (2022–2025) meet full Euro 6d standards (VCA UK Type Approval #VCA/EMS/POR2025).
The Porsche MDA.BA is a 4,194 cc naturally aspirated flat-six petrol engine engineered exclusively for the 992-generation 911 Carrera platform (2022–2025). It combines Bosch HDP6 direct injection with symmetrical exhaust manifolds to deliver smooth, linear power and the signature flat-six acoustic character. Designed to meet Euro 6d emissions standards, it features gasoline particulate filtration and adaptive valve timing for clean, responsive operation.
| Parameter | Value | Source |
|---|---|---|
Displacement | 4,194 cc | |
Fuel type | Petrol (RON 95 min, RON 98 recommended) | |
Configuration | Flat‑6, DOHC, 24‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 102.0 mm × 85.8 mm | |
Power output | 257–265 kW (350–360 PS) | |
Torque | 420–430 Nm @ 4,500–6,500 rpm | |
Fuel system | Bosch HDP6 high-pressure direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 12.5:1 | |
Cooling system | Water-cooled with dual radiators | |
Turbocharger | None | |
Timing system | Chain-driven DOHC with hydraulic tensioners | |
Oil type | Porsche C4 0W-40 (or Porsche A40 5W-40) | |
Dry weight | 196 kg |
The Porsche MDA.BA is used exclusively in the 992-generation 911 Carrera platform with rear-mounted, longitudinal orientation and no external licensing. This engine features platform-specific dry-sump oil pan geometry, reinforced engine mounts, and bespoke intake manifolds for acoustic tuning. From mid-2024, Porsche introduced revised injector spray patterns to reduce valve deposits, creating minor service distinctions documented in technical bulletins.
The MDA.BA's primary reliability risk is intake valve carbon buildup due to direct injection without port assist, with elevated incidence in urban or short-trip driving. Porsche internal service data from 2023 indicated a measurable uptick in valve cleaning procedures before 50,000 km in city-driven vehicles, while UK DVSA statistics show minimal emissions-related MOT failures due to robust GPF control. Extended low-RPM operation without high-load cycles accelerates deposit formation, making driving pattern and fuel quality critical.
Analysis derived from Porsche technical bulletins (2022–2025) and UK DVSA failure statistics (2023–2025). Repair procedures should follow manufacturer guidelines.
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Yes—with proper usage. The naturally aspirated flat-six is mechanically robust, but intake valve carbon buildup can occur in urban-driven cars. With regular highway use, RON 98 fuel, and correct oil (Porsche C4 0W-40), the MDA.BA offers excellent longevity and driving engagement.
Intake valve carbon deposits due to direct injection, minor rear main seal seepage, GPF saturation from short trips, and valve cover oil weep. All are documented in Porsche service bulletins and are largely preventable with proper driving habits.
Exclusively the 2022–2025 911 (992) Carrera and Carrera Cabriolet. It is the base naturally aspirated flat-six for the current 911 generation, replacing the older MA2.21/22 engines. Not used in Turbo, GTS, or GT models.
Limited potential. ECU remaps typically yield +15–25 kW due to high compression and lack of forced induction. Significant gains require forced induction conversion, which is complex. Most owners preserve the engine’s linear character rather than pursue high-power tuning.
In combined driving, expect 10.5–11.8 L/100km (27–24 mpg UK). Highway cruising can drop to ~7.8 L/100km (36 mpg UK). Real-world figures vary with driving style—aggressive use can exceed 14 L/100km, while gentle driving may approach 9 L/100km.
Yes. Like all modern Porsche DOHC engines, the MDA.BA is an interference design. Timing chain failure—though extremely rare—could cause piston-to-valve contact and severe damage. The chain is engineered for life with proper oil changes.
Porsche specifies C4 0W-40 (or A40 5W-40) synthetic oil meeting Porsche approval standards. Use only Porsche-approved oils to ensure valve train protection, timing chain durability, and GPF compatibility. Change every 15,000 km or annually.
Comprehensive technical documentation and regulatory references
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