The Mercedes — Benz M113.993 is a 5,461 cc, V8 naturally aspirated petrol engine produced between 2006 and 2011. It features a 90 — degree V8 configuration, dual overhead camshafts (DOHC), and variable valve timing (VVT) on intake and exhaust. In standard tuning, it delivers 258 kW (351 PS) at 6,000 rpm and 510 Nm of torque at 2,700–4,000 rpm, providing strong mid — range performance for grand touring applications.
Fitted to high — performance models including the W220 S Clas…
Production years 2006–2009 meet Euro 4 standards; 2010–2011 models comply with Euro 5 depending on market .
The Mercedes-Benz M113.993 is a 5,461 cc V8 naturally aspirated engine engineered for luxury and performance sedans and coupes (2006–2011). It combines dual overhead camshafts with variable valve timing to deliver linear power delivery and strong mid-range torque. Designed to meet Euro 4 and later Euro 5 standards, it balances performance with regulated emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,461 cc | |
Fuel type | Petrol | |
Configuration | 90° V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 97.0 mm × 92.0 mm | |
Power output | 258 kW (351 PS) @ 6,000 rpm | |
Torque | 510 Nm @ 2,700–4,000 rpm | |
Fuel system | Sequential multi-port fuel injection (ME 2.1 ECU) | |
Emissions standard | Euro 4 (pre-2010); Euro 5 (2010–2011) | |
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 | 212 kg |
The Mercedes-Benz M113.993 was used across Mercedes-Benz's W211/W220/R230 platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the S-Class and revised intake manifolds in the SL-Class-and from 2009 the updated W221 S-Class adopted the M152 successor with direct injection, 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 M113.993 is a robust V8 with strong performance, but pre-2009 units are prone to camshaft wear if oil changes are delayed or incorrect oil is used. Later models (2009+) have revised oil galleries and camshafts that improve durability. With strict use of MB 229.5 oil and 15,000 km service intervals, well-maintained engines can exceed 200,000 km reliably.
Key issues include camshaft wear (especially pre-2009), intake manifold flap failure, coolant leaks from the thermostat housing, and ignition coil degradation. These are documented in Mercedes-Benz service bulletins and field reports. Regular inspection and use of OEM parts mitigate most risks.
The M113.993 powered several flagship models: S 500 (W220), E 500 (W211), SL 500 (R230), and CL 500 (C215). It was used from 2006 to 2011, with Euro 4 compliance through 2009 and Euro 5 on later units. It was succeeded by the M152 in the W221 S-Class.
Yes, though gains are limited due to its naturally aspirated design. ECU remapping can yield +15–25 kW by optimizing throttle response and fuel curves. Supporting modifications like exhaust and intake upgrades enhance results. However, tuning must not compromise oil pressure or thermal management, especially on pre-2009 engines.
Real-world consumption is approximately 13–16 L/100km (18–22 mpg UK) in mixed driving. Highway efficiency improves to ~10 L/100km (28 mpg UK), while city driving can exceed 18 L/100km (16 mpg UK). Fuel quality and driving style significantly impact economy due to the large displacement and performance tuning.
Yes. The M113.993 is an interference engine, meaning that if the timing chain fails, pistons will contact open valves, causing severe internal damage. The front-mounted double-row chain is robust but requires proper tension and lubrication. Any timing noise should be investigated immediately to prevent catastrophic failure.
Mercedes-Benz specifies SAE 5W-40 oil meeting MB 229.5 standard. This low-ash, high-shear-stability oil is critical for protecting camshafts and maintaining oil pressure. Oil must be changed every 15,000 km or annually to prevent wear, especially in pre-2009 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.