Engine Mount Mercedes W205 W212 W213 Petrol M274 Left N/S Mount A2742230704

Engine Mount Mercedes W205 W212 W212 W213 Petrol M274 Left N/S Mount is an original component from the Engine mounts group, designed for M274 petrol units on the left side. This used engine mount ensures stable support for the powertrain, reducing vibrations and improving the overall refinement of your Mercedes' drivetrain.

Specifications and technical data

• SKU: A2742230704
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742230704
• Substitutable numbers: A2742230704, A 274 223 07 04
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Engine Mounts

Purpose and function of the engine mount

The presented mount is dedicated to Mercedes C-Class W205 and E-Class W212 models with the M274 petrol engine on the left side. As a load-bearing element within the powertrain, it is responsible for transferring loads from the engine to the chassis, reducing vibrations, and stabilizing the power unit during acceleration, engine braking, and gear changes.

A properly selected left-side engine mount is crucial for driving comfort, steering precision, and the durability of other drivetrain and suspension components. Replacing a worn mount with a functional OEM part helps to reduce unwanted vibrations, knocking, and excessive engine movement.

Benefits of using an original engine mount

Using an original mount in a Mercedes with an M274 petrol engine ensures:

• correct positioning of the power unit relative to the chassis and drivetrain,
• better isolation of vibrations transmitted to the passenger cabin,
• stable operation of the powertrain during dynamic driving,
• reduced stress on other engine and transmission mounting components.

By maintaining factory geometry and structural rigidity, the Engine mounts in this area operate within the range intended by the manufacturer, which promotes longer service life and predictable vehicle behavior.

Technical characteristics and installation

The mount has been specifically designed to work with the M274 petrol engine, taking into account its weight, operating characteristics, and force distribution in the engine bay. Its location on the left side of the vehicle means the component works with specific mounting points on the chassis and the corresponding engine mount, facilitating installation and ensuring a proper fit.

In practice, the replacement involves removing the old mount and installing the presented part into the existing mounting points. Thanks to the original design, the installation process is predictable for workshops specializing in the Mercedes brand, and after properly tightening the bolted connections, the engine regains stable support.

Application in Mercedes vehicles with petrol engines

The component is intended for Mercedes W205 and W212 vehicles equipped with the M274 petrol unit. This type of mount is particularly important in cars operated in urban and highway conditions, where frequent acceleration, braking, and changes in drivetrain load cause intensive operation of the entire engine mounting system.

Selecting the correct left-side engine mount is key to maintaining factory powertrain performance, and a used OEM part represents a reasonable compromise between cost, quality, and fitment.

Expansion of the engine mounting system in a Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional mounts, brackets, or other powertrain supports, check out the available parts in the Mercedes engine mounts category.

To better understand the impact of engine operating temperature on the durability of mounting components and the entire powertrain, it is worth reading our guide on the cooling system and savings when choosing used parts: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.