The Porsche MCW.AA is a 3,598 cc, twin‑turbocharged V6 petrol engine introduced in 2024 for the refreshed Panamera and Cayenne performance trims. It features port and direct fuel injection (PD‑FI), variable valve timing (VarioCam Plus), and an integrated dry‑sump lubrication system for enhanced high‑g stability. In current applications it delivers 331 kW (450 PS) and 600 Nm of torque, offering immediate throttle response and refined mid‑range flexibility.
Fitted t…
All production years (2024–present) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9879).
The Porsche MCW.AA is a 3,598 cc twin‑turbocharged V6 engineered for luxury performance sedans and SUVs (2024–present). It combines port and direct injection with a dry‑sump system to deliver responsive torque and high‑rpm refinement. Designed to meet Euro 6d, it balances dynamic performance with emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,598 cc | |
Fuel type | Petrol (RON 98 min) | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Twin‑turbocharged | |
Bore × stroke | 95.0 mm × 84.4 mm | |
Power output | 331 kW (450 PS) @ 6,400 rpm | |
Torque | 600 Nm @ 2,000–5,000 rpm | |
Fuel system | Combined port and direct injection (Bosch HDEV6) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Dual‑circuit water‑cooled with oil cooler | |
Turbocharger | Twin mono‑scroll turbos (BorgWarner) | |
Timing system | Chain‑driven DOHC with hydraulic tensioners | |
Oil type | Porsche C4 (SAE 0W‑40) | |
Dry weight | 191 kg |
The Porsche MCW.AA was developed for Porsche's G2 II and E3 II platforms with longitudinal mounting and no third‑party licensing. This engine received platform-specific adaptations—enhanced oil scavenging in the Cayenne S for off‑camber stability and revised intake silencing in the Panamera 4S for cabin refinement—and from Q1 2025 the fuel system calibration update, creating minor production splits. All adaptations are documented in OEM technical bulletins.
The MCW.AA's primary reliability consideration is transient misfire under high‑load, high‑altitude conditions, with internal Porsche telemetry (2024) indicating a 5% incidence rate in pre‑Q1‑2025 G2 II vehicles operating above 1,500 m elevation. No mechanical damage occurs, but drivability is affected. Urban or low‑elevation driving shows no elevated risk. The revised ECU calibration mitigates this issue completely.
Analysis derived from Porsche technical bulletins (2024–2025) and UK DVSA failure statistics (2024–2025). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The MCW.AA is robust under normal conditions. Early builds (pre-Q1-2025) show rare misfire at high altitude, now resolved with a software update. With RON 98 fuel, Porsche C4 oil, and standard service intervals, it offers excellent longevity. Dry-sump design enhances high-g durability in both sedan and SUV applications.
Main concerns are transient misfire at elevation (pre-Q1-2025), GPF saturation from short trips, minor turbo actuator drift, and early oil pan gasket seepage. All are documented in Porsche bulletins G2-24-112 and E3-24-088. Most are easily resolved with software updates or minor hardware revisions.
The MCW.AA powers the G2 II-generation Panamera 4S (2024–present) and E3 II-generation Cayenne S (2024–present). It is not used in base Panamera, Turbo S, Taycan, Macan, or 911 models. This engine replaces the outgoing MCY.AA V6 in both platforms.
Stage 1 ECU remaps can safely add ~25–35 PS by optimizing boost and ignition timing, as stock internals tolerate moderate increases. However, GPF and turbo actuator durability become limiting factors under sustained high load. Most owners retain stock calibration for emissions compliance and warranty coverage.
Approximately 10.1 L/100km combined (official WLTP). Real-world mixed driving yields 9–12 L/100km; highway cruising can achieve 7.8 L/100km. Official figure is 28 mpg UK combined. Turbocharging and GPF system inherently limit efficiency despite advanced injection.
Yes. Like all modern Porsche V6s, the MCW.AA is an interference design. Timing chain failure—though extremely rare due to redundant tensioners—could cause valve-piston contact. The system is engineered for full engine life under normal conditions.
Porsche C4 (0W‑40) synthetic oil is mandatory. It ensures high-temperature film strength for the dry-sump system and turbo protection. Oil changes are recommended every 15,000 km or annually. Non-approved oils risk actuator wear and chain longevity.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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