The Aston Martin M177 is a 3,982 cc, twin — turbocharged V8 petrol engine produced by Mercedes — AMG and adapted for use in Aston Martin grand tourers from 2020 onward. It features a 90° V configuration, dry — sump lubrication, and direct fuel injection, delivering up to 535 kW (727 PS) in GT applications. The hot — V layout with integrated exhaust manifolds enables compact packaging and rapid turbo response, supporting both high — speed refinement and aggressive throttle del…
Production years 2020–present meet Euro 6d standards .
The Aston Martin M177 is a 3,982 cc twin-turbo V8 petrol engine (2020–present) developed by Mercedes-AMG and calibrated for Aston Martin GT applications. It combines a hot-V turbo layout with direct injection and variable valve timing to deliver high output and responsive performance. Designed to meet Euro 6d standards, it balances aggressive power delivery with emissions compliance and long-term durability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,982 cc | |
Fuel type | Petrol (Unleaded, 95 RON min) | |
Configuration | 90° V8, DOHC, 32-valve | |
Aspiration | Twin-turbocharged (hot-V layout) | |
Bore × stroke | 82.6 mm × 92.9 mm | |
Power output | 535 kW (727 PS) @ 6,500 rpm | |
Torque | 800 Nm @ 2,000–5,500 rpm | |
Fuel system | Direct injection (Bosch ME17.9.1) | |
Emissions standard | Euro 6d (WLTP/RDE) | |
Compression ratio | 10.5:1 | |
Cooling system | Dual-circuit liquid cooling with electric pump | |
Turbocharger | Twin-scroll, ball-bearing units (IHI) | |
Timing system | Dual-chain (primary and secondary) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 186 kg |
The Aston Martin M177 was used across Aston Martin's DB and Vantage platforms with longitudinal mounting and is not licensed to other manufacturers. This engine received platform-specific tuning-for increased torque delivery in the DB12 Grand Tourer-and from 2022 integrates revised piston rings per AM-SIB-02-2022, creating interchange limits with pre-2022 variants. All adaptations are documented in OEM technical bulletins.
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The M177's primary reliability consideration is thermal management of turbochargers and GPFs under sustained high load, with early data indicating potential for coking in short-trip driving. Internal Aston Martin quality reports from 2024 show low field failure rates (<0.7%) across the first five years, while VCA in-service monitoring confirms high compliance with emissions standards. Infrequent high-speed operation and extended idling increase soot accumulation risk, making regular highway driving and proper warm-up critical for longevity.
Analysis derived from Aston Martin technical bulletins (2020-2025) and UK VCA in-service emissions monitoring (2020-2025). Repair procedures should follow manufacturer guidelines.
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Yes. As a modern AMG-derived engine (2020–present), the M177 has demonstrated strong reliability in Aston Martin’s internal quality reports, with failure rates below 0.7% over five years. The dual-chain timing and ball-bearing turbos are robust when maintained with correct oil (AMOB-002 0W-20) and service intervals. The 2022 piston ring update further improved oil control. Long-term durability is expected to be excellent with proper care.
The most documented concerns are turbocharger coking from inadequate cooldown, GPF regeneration failures due to short journeys, and elevated oil consumption in pre-2022 units. Intake runner actuator faults have also been noted. These are addressed in Aston Martin service information bulletins with specific diagnostic and repair protocols, including the 2022 piston ring update (AM-SIB-02-2022) to improve oil control.
The M177 is currently fitted to the DB11 AMR (2020–2023), DB12 (2024–present), and Vantage AMR (2021–2023). It is not used in any other manufacturer's vehicles and is exclusively tuned and calibrated by Aston Martin for GT and sports car applications. The engine is produced at Mercedes-AMG’s facility in Affalterbach, Germany, and shipped to Aston Martin for final integration.
Aftermarket ECU tuning is common on the M177 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official WLTP combined consumption is 13.2 L/100 km (~21.4 mpg UK). Real-world figures vary significantly: expect 15–17 L/100 km (~17.0–19.6 mpg UK) in mixed driving, but consumption can exceed 20 L/100 km (~14.1 mpg UK) under hard use. Highway cruising at legal speeds returns approximately 9.8 L/100 km (~28.8 mpg UK). GPF regeneration cycles temporarily increase fuel use.
Yes. The M177 is an interference engine, meaning that if the timing chains fail or jump, the pistons can contact the valves, resulting in severe internal damage. The dual-chain system is designed for the engine's lifespan, but adherence to oil change intervals is critical to prevent chain wear and ensure proper tensioner function. Any timing-related warning should be addressed immediately.
Aston Martin specifies SAE 0W-20 synthetic oil meeting AMOB-002 specification (equivalent to ACEA C5 and API SP). Oil must be changed every 15,000 km or annually. Using correct oil ensures optimal performance of the variable valve timing system, piston cooling jets, and turbocharger bearings. Non-compliant oils may lead to increased wear and GPF contamination.
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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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