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 h…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The EA839 4.0L delivers exceptional performance but early models (2021–2022) are prone to high-pressure fuel pump issues if maintenance is delayed. Post-2022 revisions significantly improved durability. With strict adherence to oil change intervals (every 15,000 miles) and use of Mobil 1 FS 0W-40, well-maintained examples can exceed 100,000 miles reliably.
Key issues include high-pressure fuel pump degradation (especially pre-2022), turbocharger wastegate rattle, coolant leaks from the electric water pump, and valve cover oil seepage. These are documented in Aston Martin service bulletins and affect long-term ownership costs if not proactively addressed.
The EA839 4.0L was used in the DB12 (2021–2023) and Valhalla (2022–2023) in coupe form. It is a Volkswagen Group EA839-based engine tuned by Aston Martin. All units meet Euro 6d emissions standards.
Yes. The EA839 4.0L has strong tuning potential via ECU remapping, typically yielding +50–80 kW. Supporting modifications like intercoolers and exhaust systems allow further gains. However, the Bosch HDEV6 fuel system and turbochargers have limits. Most owners balance performance upgrades with reliability due to engine complexity and value preservation.
Moderate for a twin-turbo V8 supercar. In DB12 form, expect ~14 mpg UK (20.1 L/100km) combined. Highway cruising can achieve ~18 mpg UK, while aggressive driving may drop to 9 mpg UK. Real-world consumption depends heavily on driving style. Requires 99 RON premium petrol for optimal performance.
Yes. The EA839 4.0L is an interference engine. If the timing chain fails, pistons will contact open valves, resulting in catastrophic engine damage. Regular inspection of the front-mounted chain and tensioners per TIS guidelines is essential to prevent costly repairs.
Aston Martin specifies Mobil 1 FS 0W-40 meeting AM-SPEC-004. This high-temperature-stability oil is critical for protecting turbochargers and the fuel system. Change every 15,000 miles or annually, whichever comes first, to maintain engine longevity and prevent wear.
Comprehensive technical documentation and regulatory references
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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.
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