The Aston Martin B6 5.2L is a 5,204 cc, twin — turbocharged V12 petrol engine produced between 2019 and 2023. Developed in — house, it represents the pinnacle of Aston Martin’s naturally aspirated V12 evolution, featuring DOHC, 48 — valve architecture and high — pressure direct fuel injection. Delivering up to 535 kW (725 PS) and 700 Nm of torque, it enables hyper GT performance with a focus on acoustic quality and linear power delivery.
Fitted exclusively to the DBS Superleg…
All B6 5.2L engines comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/6890), with full certification for UK and EU markets.
The Aston Martin B6 5.2L is a 5,204 cc twin-turbocharged V12 petrol engine engineered for hyper grand touring applications (2019–2023). It combines in-house V12 architecture with advanced turbocharging and direct injection to deliver extreme performance and refinement. Designed to meet Euro 6d, it balances flagship power with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,204 cc | |
Fuel type | Petrol | |
Configuration | 60° V12, DOHC, 48-valve | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 89.0 mm × 69.5 mm | |
Power output | 535 kW (725 PS) @ 6,500 rpm | |
Torque | 700 Nm @ 1,800–5,500 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d (WLTP RDE2) | |
Compression ratio | 10.2:1 | |
Cooling system | Water-cooled, dual-circuit | |
Turbocharger | Twin-scroll, low-inertia (Honeywell) | |
Timing system | Chain-driven (twin-row, duplex chain) | |
Oil type | Mobil 1 FS 0W-40 (Specification AM-SPEC-004) | |
Dry weight | 265 kg |
The Aston Martin B6 5.2L was used exclusively in the DBS Superleggera and DBS GT Zagato with longitudinal mounting and no licensed external applications. This engine received model-specific calibrations-aggressive boost mapping in the DBS GT Zagato and revised exhaust tuning in the DBS Superleggera-and from 2021 the facelifted DBS Superleggera adopted updated fuel control software, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The B6 5.2L'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 2022 indicated a notable number of pre-2021 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 (2019-2023) and UK DVSA failure statistics (2020-2024). 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 B6 5.2L delivers exceptional performance but early models (2019–2020) are prone to high-pressure fuel pump issues if maintenance is delayed. Post-2021 revisions significantly improved durability. With strict adherence to oil change intervals (every 12,000 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-2021), turbocharger wastegate rattle, coolant leaks from thermostat housing, and valve cover oil seepage. These are documented in Aston Martin service bulletins and affect long-term ownership costs if not proactively addressed.
The B6 5.2L was used in the DBS Superleggera (2019–2023) and DBS GT Zagato (2020–2023) in both coupe and Volante forms. It is an in-house developed twin-turbo V12 engine. All units meet Euro 6d emissions standards.
Yes. The B6 5.2L 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 V12 hyper GT. In DBS Superleggera form, expect ~13 mpg UK (21.7 L/100km) combined. Highway cruising can achieve ~17 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 B6 5.2L is an interference engine. If the timing chain fails, pistons will contact open valves, resulting in catastrophic engine damage. Regular inspection of the duplex 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 12,000 miles or annually, whichever comes first, to maintain engine longevity and prevent wear.
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.