The Porsche MA1.21 is a 2,995 cc, water — cooled V6 twin — turbo petrol engine produced between 2016 and 2021. It features a 90° V — angle, dual overhead camshafts (DOHC), 24 valves, and Bosch MEVD17.8 electronic direct fuel injection. In standard Cayenne and Panamera form it delivered 250–324 kW (340–440 PS) and 450–550 Nm of torque, with strong low — end thrust and smooth high — revving character ideal for grand touring and dynamic driving.
Fitted to the Porsche Cayenne (E3) a…
Production years 2016–2021 meet Euro 6b standards (VCA UK Type Approval #VCA/EMS/9601). No Euro 6d variants were produced for this engine family.
The Porsche MA1.21 is a 2,995 cc water-cooled V6 twin-turbo petrol engine engineered for the Cayenne (E3) and Panamera (G2) (2016–2021). It combines DOHC architecture with direct injection and twin-turbocharging to deliver responsive torque and refined performance. Designed to meet Euro 6b emissions standards, it integrates gasoline particulate filters (OPF) and cooled EGR for full regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,995 cc | |
Fuel type | Petrol (RON 98 min) | |
Configuration | V6, DOHC, 24-valve (90° V-angle) | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 89.0 mm × 84.0 mm | |
Power output | 250–324 kW (340–440 PS) | |
Torque | 450–550 Nm @ 1,750–5,000 rpm | |
Fuel system | Bosch MEVD17.8 direct injection (up to 250 bar) | |
Emissions standard | Euro 6b | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled (dual-circuit) | |
Turbocharger | Twin variable-vane turbochargers (BorgWarner) | |
Timing system | Chain-driven DOHC (maintenance-free design) | |
Oil type | Porsche-approved 0W-40 (ACEA C3) | |
Dry weight | 192 kg |
The Porsche MA1.21 was used in Porsche's Cayenne (E3) and Panamera (G2) platforms with front-engine, longitudinal mounting and no external licensing. This engine featured platform-specific adaptations—revised oil cooler integration in the Cayenne and unique accessory drives in the Panamera—and from 2021 the MA2.21 with mild hybrid support replaced it, creating a hard interchange limit. All adaptations are documented in OEM technical bulletins.
The MA1.21's primary reliability risk is high-pressure fuel pump (HPFP) drive wear, with elevated incidence in pre-2019 engines subjected to frequent high-load driving or poor fuel quality. Porsche internal service data from 2019 noted HPFP-related fault codes in ~7% of early Cayenne S units before 80,000 km under performance conditions, while UK DVSA records show strong overall reliability in standard use. Extended high-load operation without premium fuel increases cam follower stress, making fuel and oil quality critical.
Analysis derived from Porsche technical bulletins (2016-2021) and UK DVSA failure statistics (2018-2023). 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 MA1.21 is generally reliable for road use, but pre-2019 engines carry HPFP drive wear risk under high-load or poor-fuel conditions. With RON 98 fuel, ACEA C3 oil, and timely servicing, many examples exceed 200,000 km without major issues. Post-2019 units benefit from drive mechanism revisions.
Top concerns include HPFP drive wear (pre-2019), turbo wastegate rattle, OPF clogging from short trips, and oil cooler seal leaks. All are documented in Porsche service bulletins. HPFP issues are the most critical due to potential drivability and emissions faults.
Exclusively the Porsche Cayenne (E3) S/4S (2017–2021) and Panamera (G2) 4S/GTS (2016–2021). It powers all 3.0L V6 twin-turbo non-hybrid variants. No other manufacturer used this engine; it was replaced by the mild-hybrid MA2.21 from 2021.
Yes. Common upgrades include ECU remap (+40–60 PS), downpipes, and intercooler. Stock internals safely handle up to ~500 PS with supporting fueling. Most owners prioritize reliability (fuel quality, oil) before tuning due to HPFP sensitivity.
Moderate for a performance SUV/sedan. Expect 10–13 L/100km (28–22 mpg UK) in mixed driving. Highway cruising yields ~8.5 L/100km. Aggressive driving exceeds 15 L/100km. OPF regeneration cycles can temporarily increase consumption.
Yes. The MA1.21 is an interference design. If the timing chain fails (extremely rare), valve-to-piston contact will occur, causing severe internal damage. However, chain failure is uncommon due to robust design.
Porsche recommends 0W-40 synthetic oil meeting ACEA C3 (e.g., Mobil 1 ESP 0W-40 or Porsche-approved equivalent). Change every 15,000 km or annually. Low-SAPS formulation protects OPF and turbocharger longevity.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with PORSCHE or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
PORSCHE Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialPORSCHE documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.