Mercedes W205 Turbocharger Turbo Part Housing Petrol Engine M274 A2740903080

Mercedes W205 Turbocharger Turbo Part Housing Petrol Engine is an original component from the Turbochargers and parts group, designed for petrol units from the M274 family in the W205 model. This solution allows for precise repair of the turbocharging system while maintaining factory geometry and fitment to the engine accessories.

Specifications and technical data

• SKU: A2740903080-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740903080
• Substitutable numbers: A2740903080, A 274 090 30 80
• Fuel type: Petrol
• Category: Turbos & Parts

Purpose and function of the turbocharger housing

The turbocharger housing in the M274 petrol engine is responsible for the proper routing of exhaust gases and intake air, as well as for the stable seating of the rotor and internal components. In the case of units used in the Mercedes W205, this is crucial for:

• maintaining the correct boost pressure across the entire rev range,
• ensuring proper exhaust gas and air flow,
• reducing thermal and pressure losses in the system,
• preserving the smooth operation and dynamics characteristic of M274 engines. By using an original housing from the same component family, the turbocharging system retains the parameters specified by the manufacturer, which translates into stable operation of the petrol unit and predictable throttle response.

Benefits of using an original housing in the Mercedes W205

Selecting the correct turbocharger housing for a Mercedes W205 with an M274 engine is important from both a technical and operational perspective. Using this component allows you to:

• restore the factory flow line for exhaust gases and intake air,
• maintain compatibility with existing turbocharger accessories,
• minimize the risk of leaks and improper fitment,
• keep the petrol engine's operating parameters in line with the manufacturer's specifications. This is particularly important in modern direct-injection petrol units, where the turbocharging system is precisely tuned to the control electronics and the exhaust system. The original turbocharger housing helps avoid problems with calibration, controller errors, or performance drops.

Characteristics of the used component

The presented turbocharger housing is a used component, which in practice means the possibility of an economical repair of the turbocharging system while maintaining the original design. This type of component is particularly attractive in situations where:

• mechanical or thermal damage to the existing housing has occurred,
• it is necessary to replace the housing itself without interfering with the complete turbocharger,
• maintaining compliance with the factory Mercedes design is important. Choosing a used component from this group allows you to reduce service costs while maintaining high assembly compatibility with the M274 engine in the W205 body.

Selection by OEM number and vehicle compatibility

To ensure that the turbocharger housing will work properly with the specific version of the petrol engine in your Mercedes, it is worth verifying compatibility by the OEM number and interchangeable numbers. The vehicle's VIN number will also be helpful, as it allows for the unambiguous identification of the engine variant and the turbocharging system used. If you want to check step-by-step how to properly match turbocharging system components by OEM number and VIN, use our practical guide: Guide: how to choose the right car part by VIN and OEM number. There you will find a procedure scheme, a list of questions for the seller, and tips on how to avoid mistakes when purchasing used components.

Mercedes turbochargers and parts – expansion and service

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 housings, manifolds, or additional turbocharging system components, check the available parts in the Mercedes turbochargers and parts category. For a broader look at the development of technical solutions used by the brand, including engine units and accessories, the material dedicated to the manufacturer's flagship models may also be helpful: Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years. It allows for a better understanding of the brand's design philosophy and approach to engineering key sub-assemblies.