The Mercedes — Benz M113.964 is a 5,439 cc, V8 petrol engine produced between 2000 and 2006. It features a dual overhead camshaft (DOHC), 32 — valve configuration, and electronic multi — point fuel injection (EZM). Designed for high — performance luxury applications, it delivered 225 kW (306 PS) and 460 Nm of torque, offering smooth power delivery and refinement in flagship sedans and coupes.
Fitted to models such as the W211 E55 AMG, W220 S55 AMG, and C215 CL55 AMG, the M113.9…
All production years (2000–2006) comply with Euro 3 emissions standards in regulated markets (EU Directive 98/69/EC,.
The Mercedes-Benz M113.964 is a 5,439 cc V8 petrol engine engineered for high-performance AMG models (2000–2006). It combines DOHC valvetrain architecture with electronic fuel injection to deliver smooth performance and drivability. Designed to meet Euro 3 emissions standards, it balances responsiveness with long-term reliability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,439 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 97.0 mm × 92.0 mm | |
Power output | 225 kW (306 PS) @ 5,500 rpm | |
Torque | 460 Nm @ 3,000–4,300 rpm | |
Fuel system | Electronic multi-point fuel injection (EZM) | |
Emissions standard | Euro 3 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Double-row roller chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 208 kg |
The Mercedes-Benz M113.964 was used across Mercedes-Benz's W211/W220 platforms with longitudinal mounting and no licensed external usage. This engine received platform-specific adaptations-reinforced engine mounts in the W220 and revised exhaust manifolds in the C215-and from 2003 the facelifted W211 models adopted updated intake runners, 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.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
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 M113.964 is fundamentally robust and capable of high mileage when properly maintained. However, pre-2001 engines are prone to camshaft wear if oil changes are delayed. Later units with hardened camshafts are more durable. Using correct oil (SAE 10W-40 MB 229.1) and servicing every 15,000 km significantly improves longevity.
The most documented issues are camshaft lobe wear (especially pre-2001), EZM fuel distributor imbalance, and coolant leaks from the water pump. Oxygen sensor failure is common on older units. These are confirmed in Mercedes-Benz service bulletins and long-term owner reliability reports.
The M113.964 was used in the W211 E55 AMG (2000–2002), W220 S55 AMG (2000–2005), and C215 CL55 AMG (2000–2006). It was not used in any other Mercedes-Benz series or licensed to other manufacturers. All applications were petrol-powered AMG variants with electronic fuel injection.
Limited tuning potential exists. Performance gains are typically achieved through exhaust upgrades, ignition enhancements, and ECU remapping. Output rarely exceeds 240 kW (326 PS) without internal modifications. Due to the naturally aspirated DOHC 32-valve design, significant power increases require forced induction or cylinder head upgrades, which are rare and complex.
Moderate by modern standards. In a W220 S55 AMG, typical consumption is ~16.5 L/100 km (city) and ~9.8 L/100 km (highway), or about 26–33 mpg UK. Real-world figures depend on driving conditions, but expect 26–30 mpg UK on mixed roads. The EZM system is efficient and reliable when maintained.
No. The M113 series is a non-interference engine. If the timing chain fails, pistons will not contact the valves, preventing catastrophic internal damage. However, chain replacement is still recommended at 150,000 km or as wear is detected to maintain valve timing accuracy and prevent performance loss.
Mercedes-Benz specifies SAE 10W-40 oil meeting MB 229.1 standards. Use a high-quality mineral or semi-synthetic oil designed for older engines. Change oil every 15,000 km or annually to protect the camshaft and timing chain. Avoid modern low-viscosity oils not rated for pre-2005 engines.
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.