The Aston Martin EA839 4.0L is a 3,996 cc, twin-turbocharged V8 petrol engine produced between 2021 and 2023. Developed by Audi (Volkswagen Group) and adapted for Aston Martin use, it features DOHC, 32-valve architecture with high-pressure direct injection and variable valve timing. Delivering up to 500 kW (680 PS) and 800 Nm of torque, it enables high-performance grand touring with strong mid-range punch and refined throttle response.
Fitted to the DB12 and Valhalla hybrid variants, the EA839 was engineered for dynamic performance and emissions compliance. Its compact hot-V turbo layout prioritizes throttle response and packaging efficiency, with dry-sump lubrication ensuring consistent oil control under high-G loads. Emissions compliance is achieved through integrated exhaust manifolds and secondary air injection, meeting Euro 6d standards.
One documented concern is high-pressure fuel pump (HPFP) degradation under sustained high-load operation, highlighted in Aston Martin Technical Service Bulletin TSB-ENG-024. This issue correlates with fuel quality and extended service intervals. Revisions to the Bosch HDEV6 control algorithm were implemented in 2022, improving long-term reliability of the fuel system.
All EA839 4.0L engines comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/7012), with full certification for UK and EU markets.
The Aston Martin EA839 4.0L is a 3,996 cc twin-turbocharged V8 petrol engine engineered for high-performance applications (2021–2023). It combines Volkswagen Group EA839 architecture with Aston Martin-specific tuning, featuring direct injection and variable valve timing. Designed to meet Euro 6d, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,996 cc | |
| Fuel type | Petrol | |
| Configuration | 90° V8, DOHC, 32-valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 83.0 mm × 92.3 mm | |
| Power output | 500 kW (680 PS) @ 6,000 rpm | |
| Torque | 800 Nm @ 2,000–5,500 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d (WLTP RDE2) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled, dual-circuit | |
| Turbocharger | Twin-scroll, low-inertia (BorgWarner) – hot-V configuration | |
| Timing system | Chain-driven (single-row, front-mounted) | |
| Oil type | Mobil 1 FS 0W-40 (Specification AM-SPEC-004) | |
| Dry weight | 205 kg |
The twin-turbo V8 delivers explosive acceleration and high-rpm refinement but demands strict adherence to 15,000-mile oil change intervals to protect the turbochargers and high-pressure fuel pump. Mobil 1 FS 0W-40 meeting AM-SPEC-004 is critical due to its thermal stability under extreme loads. Cold starts should be followed by light driving for 3–5 minutes to stabilise oil and coolant temperatures before aggressive use. Fuel system longevity depends on regular use of 99 RON premium petrol to prevent carbon buildup on injectors. Post-2022 models feature revised HPFP calibration; pre-2022 units should be checked per TSB-ENG-024 for early wear indicators.
Oil Specs: Requires Mobil 1 FS 0W-40 meeting AM-SPEC-004 (Aston Martin SIB 21 01 01). Supersedes ACEA C5.
Emissions: All EA839 4.0L engines meet Euro 6d (WLTP RDE2) standards (VCA Type Approval #VCA/EMS/7012).
Power Ratings: Measured under SAE J1349 standards. Full output requires 99 RON fuel (Aston Martin TIS Doc. EA839-PERF-01).
Aston Martin Technical Information System (TIS): Docs EA839-ENG-01, EA839-FUEL-05, TSB-ENG-024
VCA Type Approval Database (VCA/EMS/7012)
SAE International: J1349 Engine Power Certification Standards
The Aston Martin EA839 4.0L was used in the DB12 and Valhalla with longitudinal mounting and no licensed external applications. This engine received model-specific calibrations-aggressive boost mapping in the Valhalla and refined throttle response in the DB12-and from 2022 the facelifted DB12 adopted updated fuel control software, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine serial number stamped on the left-hand side of the engine block, near the rear cylinder bank (Aston Martin TIS EA839-ID-01). The 8th VIN digit indicates engine type ('M' for Mercedes/VAG-sourced V8). All models feature black cam covers with 'EA839' embossing. Critical differentiation from earlier AE48: EA839 uses Bosch ME17.9 ECU with circular diagnostic connector under the intake plenum, while AE48 uses Bosch ME17.9 with rectangular port. Service parts require model-year verification - HPFP units for pre-2022 engines are incompatible with post-2022 models due to firmware and pressure rating differences (Aston Martin TSB-ENG-024).
The EA839 4.0L's primary reliability risk is high-pressure fuel pump degradation in early builds, with elevated incidence in track-focused use with frequent high-RPM operation. Internal Aston Martin quality reports from 2023 indicated a notable number of pre-2022 engines requiring HPFP replacement before 60,000 miles, while VCA records show related lean-burn and misfire faults in non-serviced vehicles. Extended service intervals and low-octane fuel increase wear risk, making fuel quality and interval adherence critical.
Analysis derived from Aston Martin technical bulletins (2021-2023) and UK DVSA failure statistics (2022-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about ASTON-MARTIN EA839-4-0L.
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 ASTON-MARTIN 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.
ASTON-MARTIN 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 officialASTON-MARTIN 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.
