Brake Disc BMW F30 F32 Rear Left Right Wheel N/O/S Ventilated Set 330X20

BMW F30/F32 Rear Brake Discs, Vented, Left and Right Side Set are original BMW braking system components, designed for installation on both rear wheels. The set ensures consistent performance of the rear axle, which translates to stable braking, predictable handling, and even pad wear. Thanks to their vented design, the discs effectively dissipate heat, supporting safe operation of the braking system during everyday and more dynamic driving.

Specifications and technical data

• SKU: 6864899
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6864899
• Substitutable numbers: 6864899, 34216864899, 6792233, 34216792233, BG
• Location on the vehicle: Rear, Right, Left
• Category: Brake Disc Rotors

Intended Use and Compatibility

The set of rear brake discs for BMW 3 Series F30/F32 has been designed for installation on the left and right sides of the rear axle. Using a dedicated set for both sides allows for maintaining factory braking characteristics, which is particularly important in BMW vehicles where the braking system interacts with stability control and traction control systems.

Original origin from the BMW group means that correct dimensions, geometry, and operating parameters are maintained, which facilitates installation and minimizes the risk of fitment issues with the hub, caliper, and dust shields.

Vented Design and Performance Characteristics

The discs belong to the Brake Discs category and feature a vented design, which improves heat dissipation from the working surface. This is crucial during:

• intense braking from higher speeds,
• long-distance highway driving,
• frequent braking in city traffic.

This reduces overheating, braking performance loss, and excessive pad wear. Using a complete set for the rear axle helps maintain even friction on both sides of the vehicle, supporting stability during emergency braking and on slippery surfaces.

Condition, Origin, and Benefits of Using Used Parts

The offered set consists of original used BMW discs, sourced from dismantling. Choosing a used OEM part is often a beneficial solution for drivers who want to maintain factory quality and fitment while optimizing service costs. Original components from dismantling usually work better with existing braking system components than random aftermarket replacements of uncertain origin.

If you want to deepen your knowledge about the safe use of used braking system components, methods of verifying their condition, and real service savings, check out the article: Brake Calipers Under the Magnifying Glass: How to Effectively Reduce Braking System Repair Costs by Choosing Proven Recycled Parts.

Additionally, if you are interested in the broader context of using used components in cars and want to verify popular opinions about them, it is worth reading the guide: Used Car Parts: Myths and Facts You Need to Know.

Benefits of Installing a Rear Axle Set

Installing a complete set of discs on the rear axle of the BMW F30/F32 offers a number of practical benefits:

• consistent friction characteristics on the left and right sides,
• more predictable car behavior when braking in corners,
• easier diagnosis and servicing of the braking system in the future,
• compliance with the vehicle manufacturer's design specifications.

This solution is particularly recommended when replacing discs on cars used dynamically or with high mileage, where the even operation of the rear axle significantly impacts driving comfort and safety.

BMW Braking System Expansion

If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other components from the same group, such as discs, pads, or brake lines, check out the available parts in the BMW Brake Discs category.