The Mercedes — Benz M 177.983 is a 3,982 cc, twin — turbocharged V8 petrol engine produced between 2017 and 2023. Developed by Mercedes — AMG, it features a hot — V configuration with DOHC 32 — valve architecture, direct fuel injection (BlueDIRECT), and variable valve timing. In standard form it delivered 430 kW (585 PS) at 6,250 rpm and 750 Nm of torque at 1,750–4,500 rpm, providing high — performance power delivery and rapid throttle response.
Fitted to flagship AMG models in…
Production years 2017–2020 meet Euro 6c standards; 2021–2023 models comply with Euro 6d depending on market .
The Mercedes-Benz M 177.983 is a 3,982 cc twin-turbocharged V8 petrol engine engineered for high-performance applications (2017–2023). It combines hot-V architecture with dry-sump lubrication to deliver rapid boost response and sustained power output. Designed to meet Euro 6c/6d emissions standards, it balances AMG-derived engineering with road compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,982 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 430 kW (585 PS) @ 6,250 rpm | |
Torque | 750 Nm @ 1,750–4,500 rpm | |
Fuel system | Direct injection (BlueDIRECT) with multi-point backup | |
Emissions standard | Euro 6c (pre-2021); Euro 6d (2021–2023, market-dependent) | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Twin-scroll, low-inertia (integrated exhaust manifolds) | |
Timing system | Double-row roller chain (DOHC) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 189 kg |
The Mercedes-Benz M 177.983 was used across Mercedes-Benz's W213/C296 platforms with longitudinal mounting and developed exclusively for AMG high-performance applications. This engine received platform-specific adaptations-reinforced engine mounts in the W213 and modified intake manifolds in the C296-and from 2020 the updated fuel pump drive system improved reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
The M 177.983's primary reliability risk is high-pressure fuel pump drive wear on pre-2020 builds, with elevated incidence in sustained high-RPM use. Internal Mercedes-Benz quality reports from 2021 noted a significant number of pre-2020 engines requiring cam follower and fuel pump replacement before 120,000 km, while AMG workshop data links a portion of high-idle instability to airflow meter drift. Extended idling and aggressive driving cycles increase valvetrain and fuel system stress, making oil quality and interval adherence critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 M 177.983 delivers high-performance power and AMG refinement, but early models (2017–2019) had reliability concerns, especially high-pressure fuel pump drive wear. Later revisions (post-2020) improved durability with reinforced cam followers and revised drive profiles, so well-maintained examples can be robust. Regular servicing and using correct oil (0W-40 MB 229.52) greatly aid longevity, especially in high-RPM applications.
The biggest issues are fuel pump drive wear (leading to whining or failure), airflow meter drift causing idle instability, and intake vacuum leaks. Other concerns include oil leaks from gaskets and occasional throttle body carbon buildup. These are documented in Mercedes-Benz service bulletins and AMG workshop records. The 2020 SIB 01.0205/20 update is critical for long-term reliability.
This 4.0L twin-turbo V8 was used exclusively in AMG-tuned performance models. It appeared in the E 63 S (W213), GT 63 S (C296), and S 63 L (V222) from 2017 to 2023. All units were Euro 6c/6d compliant and featured AMG-specific tuning, intake, and badging. It is distinct from the M178 used in GT sports cars.
Yes, the M 177.983 is highly tunable. ECU remaps can yield +50–80 kW by optimizing boost, fuel, and ignition maps, with supporting mods (intercooler, exhaust) enabling further gains. AMG's stock internals handle increased torque well. However, over-tuning risks fuel pump and turbo longevity. Most owners preserve originality, but aftermarket tuning is common in enthusiast circles.
Fuel consumption is high due to engine size and performance tuning. In an E 63 S (W213), typical usage is ~15 L/100 km (city) and ~9.5 L/100 km (highway), or about 19–30 mpg UK. Real-world figures depend on driving style, but expect 16–24 mpg (UK) on mixed roads for a healthy M 177.983.
Yes. The M 177 series is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, resulting in severe internal damage. That's why chain maintenance and oil system integrity are critical—any abnormal noise should be investigated immediately.
Mercedes-Benz specifies SAE 0W-40 oil meeting MB 229.52 specification. Always use a high-quality synthetic oil suitable for high-performance turbocharged petrol engines and change it every 15,000 km or annually to ensure proper component lubrication and prevent wear.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
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.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.