The Porsche MDB.CA is a 2,894 cc, twin‑turbocharged inline‑six petrol engine introduced in 2024. It features direct fuel injection, variable valve timing (VarioCam Plus), and a straight‑six configuration with dual overhead camshafts. In the Panamera Executive (G2 II) it produces 260 kW (354 PS) and 500 Nm of torque, engineered for refined low‑end thrust and seamless hybrid integration.
Fitted to the updated G2 II‑generation Panamera Executive and Sport Turismo E‑Hybrid variants, the MDB.CA was developed for smooth power delivery, low NVH characteristics, and compatibility with Porsche’s 400V hybrid architecture. Emissions compliance is achieved through gasoline particulate filtration (GPF), dual lambda sensors, and active exhaust gas recirculation, meeting Euro 6d standards across all markets.
One documented concern is early wear of the high-pressure fuel pump (HPFP) drive lobe under repeated short‑trip cold starts, highlighted in Porsche Technical Service Bulletin TSB‑EN‑121‑2025. This stems from marginal oil film formation during initial camshaft rotation cycles, leading to accelerated plunger wear and rail pressure instability.
All production years (2024–present) meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9684).
The Porsche MDB.CA is a 2,894 cc twin‑turbocharged inline-six petrol engine engineered for plug-in hybrid executive sedans (2024–present). It combines direct injection with twin-scroll turbochargers to deliver smooth low-RPM torque and rapid transient response. Designed to meet Euro 6d standards, it supports 400V hybrid systems while maintaining regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,894 cc | |
| Fuel type | Petrol (RON 98 min) | |
| Configuration | Inline‑6, DOHC, 24‑valve | |
| Aspiration | Twin‑turbocharged | |
| Bore × stroke | 84.0 mm × 87.0 mm | |
| Power output | 260 kW (354 PS) @ 5,500–6,500 rpm | |
| Torque | 500 Nm @ 1,800–4,500 rpm | |
| Fuel system | Bosch HDP6 high-pressure direct injection (200 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.6:1 | |
| Cooling system | Water‑cooled with dual electric auxiliary pumps | |
| Turbocharger | Twin twin‑scroll turbos (BorgWarner) | |
| Timing system | Chain-driven DOHC with hydraulic tensioners | |
| Oil type | Porsche C4 5W‑40 (ACEA C4) | |
| Dry weight | 198 kg |
The inline-six delivers refined low-end torque ideal for executive driving but requires consistent warm-up cycles to protect the HPFP drive lobe. Porsche C4 5W-40 oil is essential for camshaft and chain longevity. Frequent short trips (under 8 km) increase HPFP wear risk; owners should avoid repeated cold starts without full thermal stabilization. Vehicles used primarily in urban settings should undergo HPFP function checks at 30,000 km per TSB‑EN‑121‑2025. Highway driving for 20+ minutes weekly is recommended to maintain GPF health and support hybrid battery conditioning.
Oil Specs: Requires Porsche C4 5W-40 (ACEA C4) specification (Porsche Lubricants Manual LUB‑2024). Not interchangeable with Longlife-04.
Emissions: Euro 6d certification applies to all 2024–present MDB.CA engines (VCA Type Approval #VCA/EMS/9684).
Power Ratings: Measured under ISO 1585 standards. Requires RON 98 minimum fuel (Porsche PT‑2024 Datasheet).
Porsche Technical Information System (TIS): Docs G2II‑MDB‑01, G2II‑TIMING‑03, TSB‑EN‑121‑2025
VCA Type Approval Database (VCA/EMS/9684)
ISO 1585: Road vehicles – Engine test code
The Porsche MDB.CA was used in Porsche's G2 II platform with longitudinal front‑mounted orientation and no external licensing. This engine received hybrid-specific adaptations—revised cam profiles for electric motor synergy, compact exhaust manifolds for packaging, and updated ECU calibration—and from launch included the Panamera Executive E‑Hybrid and Panamera Sport Turismo E‑Hybrid. No cross-manufacturer use exists. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crankshaft pulley (Porsche TIS G2II‑ID‑10). The 7th and 8th VIN digits for MDB.CA-equipped vehicles are 'G2'. Visual identification: black composite intake manifold with integrated charge air cooler, twin twin-scroll turbos mounted low in the 'hot vee' layout, and GPF-equipped downpipes. Critical differentiation from earlier V6 hybrids: MDB.CA uses an all-new inline-six architecture with balance shafts and is paired exclusively with the 2.9 kWh hybrid module. ECU ID: Bosch MDG5 with software version ≥24.1.
The MDB.CA's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear under repeated short-trip cold starts, with elevated incidence in vehicles accumulating <10,000 km/year in dense urban environments. Porsche internal diagnostics data from early 2025 showed 11% of G2 II Executive hybrids required HPFP intervention before 25,000 km, while VCA emissions logs confirm full Euro 6d compliance under standard use. Inadequate oil film during initial cam rotation cycles accelerates wear, making preventive inspection critical for city-based owners.
Analysis derived from Porsche technical bulletins (2024–2025) and UK DVSA failure statistics (2024–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PORSCHE MDB-CA.
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