Mercedes R170 W202 C208 Rear Axle Differential Diff A1703501214 3,27 WARRANTY

Listing details

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

Mercedes R170 W202 C208 Rear Axle Differential Diff is an original rear differential from the Differentials group, designed for installation in the drive axle of Mercedes vehicles. This component ensures proper torque distribution between the rear wheels and a stable gear ratio, which translates into predictable handling and correct operation of the drivetrain.

Specifications and technical data

• SKU: A1703501214
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1703501214
• Substitutable numbers: A1703501214, A 170 350 12 14, A1243510605, A 124 351 06 05
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the differential

The presented rear differential is a key component of the drivetrain in Mercedes cars with rear-wheel drive. It is responsible for:

• distributing torque between the rear wheels during straight-line driving and cornering,
• maintaining a stable drive axle ratio,
• proper cooperation with the driveshaft and half-shafts.

Thanks to the appropriately selected 3.27 rear axle ratio, it is possible to achieve a balanced characteristic between acceleration dynamics and driving comfort at highway speeds.

Application in Mercedes R170 / C208 models

The differential has been designed with the rear suspension and drivetrain construction of Mercedes R170 and C208 class vehicles in mind. This means it is matched in terms of:

• geometry of mounts to the frame and suspension components,
• cooperation with the factory driveshaft,
• compatibility with rear half-shafts used in these generations.

Such a fit allows for installation without the need for structural modifications to the body or adaptation of mounts, which is particularly important when repairing drivetrains in classic Mercedes cars and youngtimers.

Technical characteristics and installation

The rear axle with a 3.27 ratio is mounted in the rear part of the vehicle, in the drive axle. The differential construction is adapted to operate under conditions typical for Mercedes passenger cars – both in daily city use and during long-distance driving. Using this component allows for an economical repair of the drivetrain while maintaining factory operating characteristics.

Before installation, a standard workshop procedure is recommended, including checking for leaks, backlash, and gear oil condition to ensure long-term and trouble-free operation after replacement.

Benefits of using an original differential

Using an original rear differential in a Mercedes R170 / C208 ensures:

• preservation of the factory axle ratio, thus predictable performance and drivetrain operating characteristics,
• proper operation of driving assistance systems that rely on standard drivetrain parameters,
• structural consistency with other rear axle components.

For users who want to consciously choose a gear ratio to suit their driving style or engine power, the guide article Dismantled drive axles and differentials – how to choose ratios for your driving style will be helpful, as it discusses the practical aspects of selecting an axle and differential.

Application area and drivetrain expansion

The differential operates in the rear section of the drivetrain, working with the suspension, half-shafts, and braking system. If you are planning a comprehensive repair or upgrade of the rear axle drivetrain area in your Mercedes and need other components from the same group, such as other axles, differentials, or complete rear drive assemblies, check the available parts in the Mercedes Differentials category.