Mercedes C216 W221 M157 Rear Axle Differential Diff 2,65 A2213504614 WARRANTY

Listing details

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

Mercedes C216 W221 M157 Rear Axle Differential Diff 2,65 is an original drivetrain component from the Differentials category, designed for rear-axle installation in Mercedes vehicles with gasoline engines. This is a solution for users who expect precise torque transfer, stable handling, and consistency with the vehicle's factory specifications.

Specifications and technical data

• SKU: A2213504614
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2213504614
• Substitutable numbers: A2213504614, A 221 350 46 14
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Differentials

Technical characteristics and 2.65 gear ratio

The presented rear differential has been designed to work with a gasoline engine, which translates into a carefully selected final drive ratio of 2.65. This configuration promotes smoother drivetrain operation at higher speeds, reduces engine RPM on the highway, and helps maintain stable, predictable vehicle behavior.

The choice of a 2.65 ratio is particularly beneficial in higher-power vehicles, where smooth torque delivery, acoustic comfort, and proper rear-axle traction are essential. As a result, the differential supports both dynamic and more economical driving without interfering with the factory logic of the drivetrain.

Purpose – rear axle and gasoline engines

The differential is designed for rear-axle installation, which is crucial for maintaining the correct geometry and load of the drivetrain in rear-wheel-drive Mercedes models. The design was developed to work with gasoline engines, ensuring that the differential's operating characteristics are consistent with the torque curve and RPM range typical for such units.

In practice, this means:

• proper load distribution in the drivetrain during dynamic acceleration,
• stable handling at higher speeds,
• maintaining the factory character of the rear axle without unwanted vibrations or jerking.

Benefits of using an original Mercedes differential

Using an original differential to replace a worn-out component allows for the restoration of the rear axle's factory operating parameters. Consistency with the suspension and drivetrain design translates into predictable vehicle behavior in corners as well as during rapid acceleration and engine braking.

The main advantages of this solution include:

• maintaining the factory gear ratio without the need to modify controllers or the transmission,
• compatibility with original mounting elements and half-shafts,
• reducing the risk of improper fitment, which is typical for aftermarket parts of uncertain origin.

Used condition – a practical approach to repair

The offered differential is a used component, which represents a reasonable compromise between repair costs and maintaining the original technical specifications. Choosing this solution allows for the restoration of proper rear-drive operation without the need to invest in a new assembly, while preserving the factory design and gear ratio.

This is a good solution for users who want to keep their car in a condition close to factory-new, avoiding experiments with random replacements and unpredictable changes in driving characteristics.

Gear ratio selection and technical knowledge – expert support

If you want to better understand how a 2.65 gear ratio affects your Mercedes' behavior, how to compare it with other variants, and how to consciously choose a drive axle for your driving style, it is worth checking reliable sources. A practical discussion of the topic can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, where differences in gear ratios, compatibility rules, and typical configurations are explained.

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