Mercedes-Benz W202 W210 Rear Differential Diff 3,07 Ratio A2103502914 WARRANTY

Mercedes-Benz W202 W210 Rear Differential Diff 3,07 Ratio is a precision drivetrain component designed for stable torque transfer to the rear wheels. The original Mercedes design ensures predictable vehicle behavior, correct drivetrain operation, and consistency with factory handling characteristics. Choosing this component is a way to maintain proper dynamics and driving comfort in C-Class W202 and E-Class W210 models.

Specifications and technical data

• SKU: A2103502914
• Mark: Mercedes (Genuine OE)
• OEM Part Number: A2103502914
• Substitutable numbers: A2103502914, A 210 350 29 14, A2103513308, A 210 351 33 08, A2103507362, A 210 350 73 62
• Location on the vehicle: Rear
• Category: Additional Differential Parts

Purpose and function in the drivetrain

The described rear differential is intended for installation on the rear axle of Mercedes C-Class W202 and E-Class W210 vehicles. It is responsible for distributing drive to both rear wheels, maintaining the correct gear ratio, and ensuring stable operation of the entire drivetrain under various speeds and loads.

The 3.07 ratio is characteristic of configurations focused on balancing acceleration and fuel economy. As a result, the differential supports smooth starting, quiet operation at highway speeds, and harmonious cooperation with the factory gearbox.

Construction and fitment for Mercedes-Benz W202 / W210

The rear differential has been constructed in accordance with Mercedes brand standards, which translates into appropriate mounting geometry, correct support points, and compatibility with factory half-shafts and the driveshaft. Consequently, installation in W202 and W210 bodies does not require structural modifications, and the component maintains a drivetrain line consistent with the manufacturer's specifications.

Located in the rear section of the vehicle, the differential operates under demanding conditions – it transfers dynamic loads, reacts to changes in traction, and must maintain the tightness and stability of the gear unit. The original design ensures adequate housing rigidity and gear meshing precision, which reduces noise and vibration while driving.

Benefits of using an original rear differential

Using the correct differential with a 3.07 ratio in a Mercedes-Benz W202 / W210 allows you to maintain driving parameters consistent with the factory specification. A well-chosen component translates into:

• stable torque transfer to the rear wheels,
• proper cooperation with the ABS system and electronic stability control systems (if present in the given configuration),
• maintenance of the engine RPMs intended by the manufacturer at typical speeds,
• reduction of unwanted noise from the rear axle area.

By maintaining the original gear ratio characteristics, the driver receives consistent handling and predictable vehicle reactions, which is important both in daily use and on longer trips.

Selection by OEM number and compatibility

When selecting a rear differential for a specific Mercedes vehicle, it is crucial to check the OEM number and interchangeable numbers, as well as to compare the placement on the vehicle. Verifying this data helps avoid installation problems and ensures full compliance with the factory drivetrain configuration.

If you want to check the compatibility of the part with your VIN and OEM number step-by-step, the following practical guide will be helpful: 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 check technical parameters before purchasing.

Expanding drivetrain repairs in Mercedes

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 gears, housings, or mounts, check the available parts in the category Other Mercedes differential parts.

When deciding to install a used differential, it is also worth verifying your expectations regarding aftermarket parts. The following material, which debunks popular myths and explains what to look for when buying, may be helpful: Used car parts: Myths and facts you need to know. This will make it easier for you to assess how to choose a component that meets your operational requirements.