Mercedes W205 Rear Axle Differential Diff A2053507814 2,474 Ratio WARRANTY

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W205 Rear Axle Differential Diff is an original drivetrain component from the Differentials group, designed for installation on the vehicle's rear axle. It ensures precise torque transfer to the wheels, stable drivetrain operation, and predictable vehicle behavior in various road conditions. This is the ideal solution for users seeking a proven, factory-spec component rather than aftermarket replacements of unknown origin.

Specifications and technical data

• SKU: A2053507814
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2053507814
• Substitutable numbers: A2053507814, A 205 350 78 14
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The presented rear axle differential is responsible for distributing drive to the rear wheels and providing the correct gear ratio between the driveshaft and the wheel hubs. A properly selected gear ratio translates into predictable dynamics, smooth acceleration, and stability at higher speeds. A correctly matched differential reduces unwanted phenomena during starting, accelerating, and cornering, which is important both in daily use and during more dynamic driving.

Key advantages of using an original differential

Using an original differential in a Mercedes W205 allows you to maintain the factory performance characteristics of the drivetrain. The most important benefits include:

• Consistency with factory design – maintaining the drivetrain operating parameters specified by the manufacturer.
• Appropriate gear ratio matched to the weight, power, and character of the engine.
• Stable vehicle handling during changes in load and speed.
• Reduced risk of improper interaction with other drivetrain components.

As a result, the driver experiences predictable vehicle behavior without the need for electronic interference or additional mechanical modifications.

Vehicle placement and installation aspects

The differential is designed for installation in the rear of the vehicle, within the drive axle area. Correct placement on the vehicle is crucial for suspension geometry, axle shaft operation, and the durability of the entire system. Installation should be performed by a workshop experienced in working with Mercedes drivetrain systems, following the manufacturer's procedures, correct tightening torques, and leak checks.

Before installation, it is recommended to verify the compatibility of the differential with the specific engine and drivetrain version of the car to ensure proper cooperation with the existing driveshaft, axle shafts, and vehicle electronics.

Characteristics of the used product

The offered differential comes from dismantling, which allows you to combine an attractive purchase cost with the preservation of the factory design. A used component is a good choice for users who want to restore the efficiency of the drivetrain without investing in new parts. Before installation, it is worth conducting a standard workshop inspection, including an assessment of play, seals, and mounting points, to ensure long-term and trouble-free operation.

Gear ratio selection and additional technical materials

When replacing the drive axle, it is essential to match the gear ratio to the engine version, transmission, and expected driving style. An incorrectly selected gear ratio can affect perceived dynamics, engine RPM at cruising speeds, and driving comfort. To better understand the relationship between the differential ratio and drivetrain performance, it is worth checking our guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

Related products from the same group

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other elements from the same group, such as additional axles, differentials, or complete rear drive assemblies, check out the available parts in the Mercedes Differentials category.