Mercedes C215 W220 M113 Rear Axle Differential Diff I=2.82 A2203507514 WARRANTY

Listing details

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

Mercedes C215 W220 M113 Rear Axle Differential Diff I=2.82 is an original, used rear differential designed for the drive axle in Mercedes vehicles equipped with the M113 engine. The carefully selected I=2.82 gear ratio provides a balanced combination of acceleration dynamics and driving comfort at higher speeds. This is a solution for users who expect factory-spec construction and predictable drivetrain performance.

Specifications and technical data

• SKU: A2203507514
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2203507514
• Substitutable numbers: A2203507514, A 220 350 75 14
• Location on the vehicle: Rear
• Part type: Differential & Housing Assembly
• Category: Differentials

Purpose and function in the drivetrain

The presented rear differential operates within the drive axle, responsible for distributing torque between the rear wheels and adjusting the gear ratio between the driveshaft and the wheel hubs. In vehicles with the M113 engine, its application allows for maintaining proper acceleration characteristics, engine RPM, and stability during cornering.

The I=2.82 gear ratio is a favorable compromise between flexibility at low speeds and smooth operation during highway driving, which promotes handling fluidity and reduces cabin noise.

Benefits of using an original differential

Using an original differential in Mercedes C215 and W220 models with the M113 engine allows for maintaining the factory operating parameters of the drivetrain. This means:

• consistent operation with the stock transmission and driveshaft,
• predictable vehicle behavior during acceleration and engine braking,
• proper cooperation with electronic systems responsible for traction and stability control.

For the user, this translates into stable handling, proper traction, and a reduction in the risk of unwanted vibrations or noise resulting from an incorrectly selected gear ratio.

Vehicle placement and installation aspects

The differential is designed for installation in the rear of the vehicle, in the drive axle area. The design intended for the C215 / W220 platform with the M113 engine facilitates fitting to factory mounting points and stock half-shafts. This makes it possible to maintain the original suspension geometry and proper cooperation with other chassis components.

Before installation, it is recommended to verify the compatibility of the gear ratio with the current vehicle configuration to maintain consistent driving characteristics and avoid discrepancies in drivetrain operation.

Practical application and gear ratio selection

The differential with an I=2.82 gear ratio performs well in cars used both in urban conditions and on longer routes. In practice, this translates into:

• moderate engine RPM at highway speeds,
• sufficient dynamics for overtaking,
• balanced fuel consumption under typical operating conditions.

If you want to better understand how the drive axle ratio affects driving characteristics and component durability, it is worth checking out the guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. This is a practical addition to your knowledge when planning a differential replacement.

Expanding the drivetrain in your 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 drive axles, other differentials, or related components, check out the available parts in the Mercedes Differentials category.