The Aston Martin TB04 — 12 is a 3,998 cc, twin — turbocharged V8 petrol engine produced between 2020 and 2025. Developed in collaboration with Mercedes — AMG as part of the M177 engine family, it features a 90° V8 configuration, DOHC 32 — valve heads, and hot — V turbocharging layout. In standard tune, it produces 405 kW (550 PS) and 685 Nm of torque, with outputs rising to 441 kW (600 PS) in higher — performance variants such as the DB11 AMR and DBS Superleggera.
Fitted to the DB11, DB…
All TB04-12-powered vehicles comply with Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/8901).
The Aston Martin TB04-12 is a 3,998 cc twin-turbocharged V8 petrol engine engineered for high-performance grand touring and SUV applications (2020–2025). It features a 90° aluminum block, DOHC 32-valve heads, and hot-V turbocharging with dual-scroll turbines to deliver strong low-end torque and responsive power delivery. Co-developed with Mercedes-AMG (M177 basis), it meets Euro 6d standards while supporting advanced thermal management and GPF integration.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,998 cc | |
Fuel type | Petrol | |
Configuration | 90° V8, DOHC, 32-valve | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 405–441 kW (550–600 PS) | |
Torque | 685–800 Nm @ 2,000–4,500 rpm | |
Fuel system | Direct injection, Bosch MD17.8.12 ECU | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled, dual-circuit with integrated charge cooler | |
Turbocharger | Twin-scroll, hot-V layout (BorgWarner) | |
Timing system | Chain-driven (dual overhead camshafts) | |
Oil type | Mobil 1 0W-40 (Aston Martin Specification WSS-M2C949-A2) | |
Dry weight | 209 kg |
The Aston Martin TB04-12 was used across Aston Martin's VH and ML3 platforms with longitudinal mounting and co-developed with Mercedes-AMG as part of the M177 family. This engine received model-specific calibrations-intake tuning in the Vantage and revised exhaust manifolds in the DBS Superleggera-and from 2022 the DBX707 adopted the TB04-12 HP variant with higher boost and revised cam profiles, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The TB04-12's primary reliability risk is intercooler hose detachment under high boost on pre-2021 DBX units, with elevated incidence during spirited driving. Internal Aston Martin service reports from 2021 indicated intermittent boost loss in early DBX models, while UK DVSA records show related fault codes contributing to emissions-related MOT failures. Aggressive driving and infrequent inspections increase risk, making use of revised clamping hardware critical.
Analysis derived from Aston Martin technical bulletins (2020-2024) and UK DVSA failure statistics (2021-2023). 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 TB04-12 is generally robust when properly maintained, but pre-2021 DBX models are prone to intercooler hose detachment under high boost. Later revisions (post-2021) improved clamping hardware. Regular oil changes with correct 0W-40 specification and cooling system maintenance are essential. Well-serviced engines can exceed 120,000 km without major issues.
The most frequent issues are intercooler hose detachment (especially in early DBX), oil consumption in high-mileage engines, cooling system leaks, and throttle body motor wear. These are documented in Aston Martin service bulletins and supported by dealer repair records.
The TB04-12 powers the DB11 V8 (2020–2025), DBS Superleggera (2020–2025), Vantage (2020–2025), and DBX (2020–2025), including the DBX707. It is co-developed with Mercedes-AMG (M177 basis) but features Aston Martin-specific calibration and intake systems.
Yes. ECU remapping can yield +30–50 kW gains safely. Intake and exhaust upgrades improve breathing. The stock turbochargers support up to 700 PS with supporting modifications. Tuning should preserve factory reliability and use high-octane fuel to prevent knock and protect the GPF.
Moderate for a high-performance twin-turbo V8. In a DB11 V8, expect ~14.8 L/100km (city) and ~9.3 L/100km (highway), or 19 mpg UK combined. The heavier DBX consumes more, around ~16.5 L/100km in mixed driving. Real-world consumption depends heavily on driving style and fuel quality.
Yes. The TB04-12 is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, causing catastrophic damage. Chain replacement is recommended every 120,000 km or 10 years, whichever comes first.
Aston Martin specifies Mobil 1 0W-40 meeting WSS-M2C949-A2 standard. Oil must be changed every 12,000 km or 1 year. Using incorrect oil can accelerate turbo bearing and chain wear due to the high-temperature, high-pressure environment of the twin-turbo V8.
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.
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