Mercedes W204 C 180 156HP Complete Engine BlueEFFICIENCY 274.910 274910 WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mercedes W204 C 180 156HP Complete Engine BlueEFFICIENCY 274.910 is a used powertrain unit from the Engines category, designed for demanding users who expect a proven service solution. The completeness of the assembly and the BlueEFFICIENCY technology make it an attractive option when replacing the drivetrain in Mercedes C-Class W204 generation models. By maintaining factory specifications, the engine ensures proper operating parameters and driving comfort.

Specifications and technical data

• SKU: A2740106503-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740106503
• Substitutable numbers: A2740106503, A 274 010 65 03
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Engine code: 274910
• Mileage: 49 000

Technical characteristics of the unit

The presented engine belongs to the modern family of Mercedes gasoline units, featuring four cylinders in an inline configuration. The use of BlueEFFICIENCY technology means a design optimized for fuel consumption and exhaust emissions, while maintaining adequate dynamics for the 156 HP C 180 version. The engine code allows for unambiguous identification of the unit in service documentation and the selection of appropriate auxiliary components.

The gasoline powertrain in this configuration ensures smooth operation, good refinement, and predictable behavior across the entire rev range. The four-cylinder architecture facilitates service maintenance and provides a favorable compromise between performance and operating costs.

Application in Mercedes W204 C 180

The Mercedes W204 C 180 156HP Complete Engine BlueEFFICIENCY 274.910 has been designed for full integration with the systems of the Mercedes C-Class W204 in the C 180 version. Proper matching with factory electronics, accessories, and the drivetrain reduces the risk of problems during installation and the first start-up after replacement. As a result, this solution is particularly beneficial for workshops specializing in the Mercedes brand and users expecting the most trouble-free adaptation possible.

The gasoline unit of this generation works well with both automatic and manual transmissions intended for the C 180, which allows for maintaining the vehicle's original configuration. Correctly matching the engine code to the specific body version and equipment is crucial for maintaining the full functionality of onboard systems.

Benefits of choosing a used complete engine

Choosing a used, complete engine from the BlueEFFICIENCY family is a solution that, in many cases, allows for significantly shortening repair time compared to a major overhaul of the existing unit. A complete assembly reduces the need to transfer a large number of components, which lowers the risk of assembly errors and speeds up workshop work.

The main advantages of such a configuration include:

• maintaining structural consistency with the original Mercedes design,
• easier diagnostics and engine control unit configuration after installation,
• the ability to restore full vehicle efficiency at controlled costs,
• a favorable price-to-potential-mileage ratio that the engine can still achieve.

Additionally, the relatively low mileage of the unit in the context of this class of engines increases its attractiveness as a base for further operation, especially with properly conducted oil service and regular inspection of accessories.

Selection, installation, and verification before installation

Before installation, it is recommended to perform a detailed verification of the unit regarding tightness, the condition of accessories, and compatibility with the configuration of the specific W204 C 180 vehicle. A professional workshop should pay attention to elements such as the fuel system, cooling system, and the compatibility of electrical harnesses with the vehicle's installation. Properly performed installation minimizes the risk of later faults and allows for fully utilizing the engine's potential.

If you want to better prepare for the purchase and installation of a used powertrain unit, it is worth familiarizing yourself with practical tips regarding the assessment of technical condition, start-up procedures after replacement, and typical assembly errors. A detailed guide can be found in the article Buying a used engine: 5 things you must check before installation, which discusses key verification stages step by step.

Substantive support and additional information

When planning a drivetrain replacement in a Mercedes, it is also worth analyzing the experiences of users of other premium brands, where improper selection or service neglect can generate very high costs. A good point of reference is the material describing problematic units in a popular competing model – you will find it in the article BMW E90 faulty engines: check what can ruin your budget!, which shows how important an informed decision is when choosing an engine.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as blocks, cylinder heads, or complete powertrain assemblies, check the available parts in the Mercedes Engines category.

In summary, the Mercedes W204 C 180 156HP Complete Engine BlueEFFICIENCY 274.910 is a reasonable proposal for users and workshops looking for a proven, four-cylinder gasoline unit that allows for restoring full vehicle functionality while maintaining factory driving characteristics and predictable operating costs.