The Mercedes — Benz M 274.910 is a 1,991 cc, inline — four turbocharged petrol engine produced between 2013 and 2017. It features dual overhead camshafts (DOHC), variable valve timing (VVT) on both intake and exhaust camshafts, and direct fuel injection (BlueDIRECT). In standard tune, it delivered 155 kW (211 PS), with higher outputs reaching 180 kW (245 PS) in AMG Line and C — Class Coupe applications, producing torque between 350–370 Nm.
Fitted to key compact and mid — size…
All production years 2013–2017 meet Euro 6 emissions standards .
The Mercedes-Benz M 274.910 is a 1,991 cc inline-four turbocharged petrol engine designed for transverse applications (2013–2017). It combines direct injection with twin-scroll turbocharging to deliver responsive acceleration and improved fuel economy. Engineered to meet Euro 6 standards, it balances performance with emissions compliance in compact and mid-size models.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,991 cc | |
Fuel type | Petrol | |
Configuration | Inline-four, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 83.0 mm × 92.0 mm | |
Power output | 155–180 kW (211–245 PS) | |
Torque | 350–370 Nm @ 1,200–4,000 rpm | |
Fuel system | Direct injection (BlueDIRECT), multi-point injection (secondary) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single twin-scroll turbocharger (BorgWarner) | |
Timing system | Dual chain (primary and secondary), non-interference design | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 152 kg |
The Mercedes-Benz M 274.910 was used across Mercedes-Benz's W205/W176/X156 platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-intake tuning for the GLA-Class and revised engine mounts for the C-Class-and from 2015, updated high-pressure fuel pumps were introduced to improve longevity, creating minor service part differences. 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 M 274.910 is generally robust when maintained properly. Pre-2015 models are prone to high-pressure fuel pump wear, which can lead to hard starting and misfires if ignored. Later models (post-2015) benefited from updated pumps and improved durability. Regular oil changes with MB 229.51 spec oil every 15,000 km are essential. With proper care, these engines can exceed 200,000 km.
The most documented issues are high-pressure fuel pump wear (especially pre-2015), intake valve carbon buildup affecting idle, oil leaks from valve covers and front seal, and coolant leaks from the plastic thermostat housing. These are confirmed in Mercedes-Benz service bulletins and field reports. Preventative maintenance greatly reduces risk.
The M 274.910 was used in several compact and mid-size models: W205 C-Class (C 200/C 250/C 450 AMG), W176 A-Class (A 200/A 250), X156 GLA-Class (GLA 200/GLA 250), C117 CLA-Class, and W246 B-Class. All applications are Euro 6 compliant and feature transverse mounting. No external licensing to other manufacturers occurred.
Aftermarket ECU tuning is common on the M274910 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.
In combined driving, expect 7–9 L/100km (32–40 mpg UK). Highway cruising can achieve ~6.0 L/100km (47 mpg UK), while city driving may exceed 10 L/100km (28 mpg UK). Real-world figures depend heavily on driving style, vehicle weight, and transmission tuning.
No. The M 274.910 uses a non-interference valvetrain design. If the timing chain fails, pistons will not contact valves, preventing catastrophic internal damage. However, timing integrity is still critical for performance and emissions compliance.
Mercedes-Benz specifies SAE 5W-30 oil meeting MB 229.51 standard. This low-ash, mid-SAPS formulation protects direct injection components and is compatible with oxygen sensors and catalytic converters. Oil changes every 15,000 km or annually are recommended to maintain fuel pump and turbo longevity.
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.