BMW X5 E70 3.0d 3.0sd M57N2 Rear Differential Diff 3,

Description

BMW X5 E70 3.0d 3.0sd M57N2 Rear Differential Diff is a precisely remanufactured rear differential designed for the drive axle of BMW X5 E70 models with M57N2 diesel engines. This component is responsible for stable torque transfer to the rear wheels, ensuring the correct 3.64 gear ratio and predictable vehicle behavior in various road conditions.

Specifications and technical data

• SKU: 7552523-1
• Mark: BMW (Genuine OE)
• Condition: Remanufactured
• OEM Part Number: 7552523
• Substitutable numbers: 33107552523, 7552523, 33107552524, 7552524
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The offered rear differential is a component from the Differentials category, designed to operate in the drivetrain of the BMW X5 E70 with 3.0d and 3.0sd M57N2 units. It is responsible for distributing drive to the rear wheels, maintaining the correct gear ratio, and smoothly compensating for the difference in wheel rotational speed when cornering.

Its location on the vehicle is the rear axle, which means the differential works directly with the driveshaft and half-shafts, influencing:

• the car’s response to acceleration and engine braking,
• stability at higher speeds,
• traction during take-off and cornering.

Technical characteristics and advantages of the 3.64 ratio

The 3.64 ratio is a compromise between dynamics and fuel economy, well-matched to the torque characteristics of M57N2 engines. In practice, this means:

• efficient acceleration in the typical RPM range,
• comfortable drivetrain operation at highway speeds,
• adequate flexibility when overtaking without excessive downshifting.

The remanufactured differential ensures that factory operating parameters are maintained, which is essential for proper cooperation with the vehicle’s electronics and transmission. A properly selected gear ratio reduces stress on the drivetrain and promotes even wear of other components.

Condition, remanufacturing process, and fitment

The item is offered in remanufactured condition, meaning it has undergone a process to restore full operational efficiency while maintaining parameters close to factory specifications. This type of differential is a particularly favorable choice when you are looking for:

• technical fitment for a specific BMW model,
• maintenance of the correct rear axle ratio,
• cost reduction compared to a new OEM component.

Selecting a differential for the BMW X5 E70 requires attention to compatibility with the engine version and drivetrain configuration. The product has a dedicated OEM part number and interchangeable numbers, which facilitates compatibility verification based on manufacturer catalogs or the vehicle’s VIN.

Practical application and technical support

Replacing the rear differential is recommended in case of noisy axle operation, noticeable play in the drivetrain, or abnormal vehicle behavior under load. Using a remanufactured component allows you to restore proper drivetrain refinement, reduce noise, and increase handling predictability.

To better understand the selection of gear ratios for your driving style and the impact of the drive axle on the car’s character, it is worth reading the article: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. This material discusses in a practical way the issues of gear ratios, compatibility, and the differences between used and remanufactured components.

Drivetrain expansion in BMW

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