Audi A7 4G 3.0 TDI Rear Axle Differential Diff LWV 0BC500043R WARRANTY

Listing details

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

Audi A7 4G 3.0 TDI Rear Axle Differential Diff LWV is a factory-original drivetrain component, designed for the rear axle in models equipped with a diesel engine and an automatic transmission. This used differential ensures proper torque distribution to the rear wheels, which translates into stable handling, predictable traction, and safe drivetrain operation. It is the ideal solution for drivers who expect consistent performance of the drive axle with the rest of the drivetrain and wish to maintain the original driving characteristics of their Audi.

Specifications and technical data

• SKU: 0BC500043R
• Mark: Audi
• Condition: Used
• OEM Part Number: 0BC500043R
• Substitutable numbers: 0BC500043R, 0BC 500 043 R
• Location on the vehicle: Rear
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Differentials

Purpose and drivetrain compatibility

The presented rear axle differential has been designed to operate in Audi vehicles with a diesel engine and an automatic transmission, where precise cooperation with the control electronics and other drivetrain components is crucial. Its placement on the rear axle means it is responsible for:

• transferring torque from the driveshaft to the rear wheels,
• maintaining appropriate gear ratios depending on the drivetrain configuration,
• stabilizing vehicle behavior during acceleration and engine braking.

Thanks to its factory-original design, the differential works seamlessly with standard traction control and electronic stability programs, which is particularly important in high-torque diesel units.

Technical characteristics of the differential

The rear axle differential in the Audi A7 4G 3.0 TDI has been developed with the high torque generated by the diesel engine in mind. The design provides:

• optimized gear ratios for a balance between dynamics and fuel economy,
• adaptation for operation with an automatic transmission,
• maintenance of appropriate housing rigidity and durability under loads typical for the premium segment.

A differential configured in this way allows for smooth acceleration and predictable throttle response, which is especially noticeable during highway driving and at higher speeds.

Practical application and benefits of installation

Installing this rear axle differential is particularly recommended in situations where the current unit shows signs of wear, such as noise under load, jerking, or uneven power delivery. Using an original differential from the same model series allows you to:

• restore the vehicle's factory driving properties,
• maintain compatibility with the existing drivetrain configuration,
• minimize the risk of issues with the automatic transmission control electronics and traction systems.

For Audi A7 4G 3.0 TDI users, this is a solution that enables a technically correct repair of the drivetrain without interfering with the original design specifications.

Gear ratio selection and technical knowledge

When replacing a differential, it is crucial to match the gear ratio to the specific engine version, transmission type, and drivetrain configuration. Proper selection has a direct impact on:

• engine RPM at highway speeds,
• acceleration response,
• fuel consumption and acoustic comfort.

To better understand the relationships between axle ratios and driving style, and to avoid errors during selection, it is worth consulting this specialized guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. The article explains the issues of gear ratios, compatibility, and practical application examples in an accessible way.

Expanding the Audi drivetrain

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