Mercedes W203 C180 Kompressor Rear Differential Diff 3,07 Ratio WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

Mercedes W203 C180 Kompressor Rear Differential Diff 3,07 Ratio WARRANTY is a precisely engineered rear axle differential dedicated to the drivetrain of the Mercedes C-Class W203 generation with a Kompressor engine. The properly selected rear gear ratio ensures stable torque transfer, predictable vehicle handling, and comfortable drivetrain operation in daily use. This is a solution for users who expect consistent driving characteristics, correct drivetrain operation, and compliance with factory specifications.

Specifications and technical data

• SKU: A2033509314
• Mark: Mercedes (Genuine OE)
• OEM Part Number: A2033509314
• Substitutable numbers: A2033509314, A 203 350 93 14, A2033507514, A 203 350 75 14, A2033503594, A 203 350 35 94
• Location on the vehicle: Rear
• Category: Additional Differential Parts

Purpose and function in the drivetrain

The offered rear differential is the component responsible for distributing torque to the rear axle wheels, maintaining the correct gear ratio selected for the C180 Kompressor powertrain. Its location on the vehicle is at the rear, meaning it is mounted in the rear axle area, directly connected to the driveshaft and half-shafts.

A properly selected final drive ratio affects:

• acceleration characteristics and flexibility in the mid-speed range,
• engine RPM when driving at a constant speed,
• handling stability at higher speeds,
• proper cooperation with the factory gearbox.

Compatibility and identification parameters

The differential has been developed for Mercedes C-Class W203 vehicles in the C180 Kompressor version, where a specific rear axle ratio is required. The product belongs to the Other differential parts group, which means it is a specialized component strictly related to the drivetrain system, and its selection should be based on the vehicle's catalog data.

The item has an assigned OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific car configuration and allows for a technically correct fit to the existing drivetrain. This helps reduce the risk of incorrect selection and ensures consistency with Mercedes factory specifications.

Benefits of using the correct differential

A properly selected rear axle in a Mercedes W203 C180 Kompressor translates into a number of practical operational benefits:

• Stable drivetrain operation – correct torque distribution to the rear wheels, without unwanted vibrations or overloads.
• Predictable vehicle behavior – consistent acceleration and engine braking characteristics, in line with factory assumptions.
• Optimal load on other drivetrain components – lower risk of excessive wear on the gearbox, driveshaft, and half-shafts.
• Possibility of professional drivetrain repair – especially important when servicing high-mileage cars.

For workshops and individual users, this means a more predictable repair process and easier diagnostics of potential future faults.

Vehicle placement and installation aspects

The differential is designed for installation on the rear axle of the vehicle, in the rear suspension area. Such placement requires following the appropriate installation procedure, including:

• correct alignment with the driveshaft,
• checking mounts and bushings for play,
• verifying connection tightness and oil level in the gear.

Professional installation allows you to fully utilize the potential of the part and ensure consistent, quiet operation of the rear axle under typical road conditions.

Technical support and additional materials

In the case of all-wheel-drive vehicles, it is particularly important to match the gear ratios between the front and rear axles. To better understand the design differences in AWD systems used by various manufacturers and the impact of individual components (including differentials) on drivetrain operation, it is worth reading the article xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW.

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 housings, mounts, or additional gear components, check the available parts in the Other Mercedes differential parts category.