The Porsche MCY.PA is a 2,894 cc, twin‑turbocharged V6 petrol engine introduced in 2023 for the second‑generation Macan lineup. It features port and direct fuel injection (PD‑FI), variable valve timing (VarioCam Plus), and a dry‑sump lubrication system optimized for compact transverse packaging. In current applications it delivers 260 kW (354 PS) and 500 Nm of torque, with peak torque available from 1,750 rpm for responsive urban and highway driving.
Fitted exclusively to the Macan S (PA2), the MCY.PA replaces the previous Audi‑derived EA839 unit with Porsche‑specific engine management, revised turbo geometry, and enhanced thermal shielding. Emissions compliance is achieved via a gasoline particulate filter (GPF), cooled exhaust gas recirculation (EGR), and precise lambda control calibrated to meet Euro 6d standards across all markets.
One documented concern is premature failure of the high‑pressure fuel pump (HPFP) diaphragm under sustained high‑load conditions, highlighted in Porsche Service Bulletin PA‑23‑098. This issue stems from material fatigue in early‑batch Bosch pumps when exposed to frequent thermal cycling above 90 °C ambient. From Q4 2023, Porsche implemented a reinforced diaphragm and updated fuel rail pressure logic.
All production years (2023–present) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9881).
The Porsche MCY.PA is a 2,894 cc twin‑turbocharged V6 engineered for compact SUV applications (2023–present). It combines port and direct injection with a dry‑sump system to deliver immediate torque and high‑load stability. Designed to meet Euro 6d, it balances dynamic response with regulatory compliance in the new Macan platform.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,894 cc | |
| Fuel type | Petrol (RON 98 min) | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Twin‑turbocharged | |
| Bore × stroke | 91.0 mm × 74.5 mm | |
| Power output | 260 kW (354 PS) @ 6,200 rpm | |
| Torque | 500 Nm @ 1,750–5,000 rpm | |
| Fuel system | Combined port and direct injection (Bosch HDEV6) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.3:1 | |
| 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 | 182 kg |
The twin‑turbo V6 provides immediate low‑end torque ideal for urban and highway driving but requires minimum RON 98 fuel to prevent knock under load. Porsche C4 (0W‑40) oil is mandatory for dry‑sump integrity and high‑temperature turbo protection. Extended high‑load operation in hot climates may accelerate HPFP diaphragm fatigue in pre‑Q4‑2023 builds. Revised pumps introduced in late 2023 resolve this; earlier units should be inspected if rail pressure deviation or misfire codes appear. GPF regeneration is automatic but frequent short trips may require occasional extended drives to complete cycles.
Oil Specs: Requires Porsche C4 (0W‑40) specification (Porsche Owner's Manual PA2 Macan S). Meets ACEA C3 with Porsche-specific shear stability requirements.
Emissions: Euro 6d certification applies to all 2023–present models (VCA Type Approval #VCA/EMS/9881). Includes real-driving emissions (RDE) compliance.
Power Ratings: Measured under ISO 1585 standards. Full 260 kW output requires RON 98 or higher (Porsche TIS Doc. PPA-MCY-PA-01).
Porsche Technical Information System (TIS): Docs PPA-MCY-PA-01, PPA-MCY-PA-02, SIB PA-23-098
VCA Type Approval Database (VCA/EMS/9881)
ISO 1585: Road vehicles – Engine test code
The Porsche MCY.PA was developed exclusively for Porsche's PA2 Macan platform with transverse mounting and no third‑party licensing. This engine received specific packaging adaptations—including revised exhaust manifolds for tighter clearances and an integrated dry‑sump reservoir—for the Macan S. From Q4 2023, the high‑pressure fuel pump was upgraded to a reinforced diaphragm variant, creating minor production splits. All adaptations are documented in OEM technical bulletins.
Engine code 'MCY.PA' is laser-etched on the front timing cover adjacent to the camshaft sensor bracket (Porsche TIS PPA-ID-03). The 10th VIN digit corresponds to model year; full engine ID is encoded in the QR label on the left strut tower linked to Porsche PIWIS. Pre-Q4-2023 engines use standard Bosch HPFP (part #0285016026); post-update units feature reinforced diaphragm pumps (part #0285016026.R1). No other Porsche models use this engine code.
The MCY.PA's primary reliability risk is high‑pressure fuel pump diaphragm fatigue under sustained high‑load, high‑ambient conditions, with internal Porsche diagnostics (2023) indicating a 6% incidence rate in pre‑Q4‑2023 Macan S vehicles operated above 35 °C with frequent mountain or track use. No secondary damage occurs, but drivability and emissions compliance degrade. The revised pump resolves this issue completely.
Analysis derived from Porsche technical bulletins (2023–2025) and UK DVSA failure statistics (2023–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE MCY-PA.
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Regulation (EC) No 715/2007
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