BMW E46 Z4 E85 Front Wheel Left Right Ventilated Brake Disc Set 325X25 6864047

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E46 Z4 E85 Front Wheel Left Right Ventilated Brake Disc Set 325X25 are original braking system components from the Brake discs group, designed for installation on the front axle in selected BMW models. The set ensures consistent performance on both the left and right sides, which translates into stable, predictable braking and comfortable operation of the entire system.

Specifications and technical data

• SKU: 6864047
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6864047
• Substitutable numbers: 6864047, 34116864047, 1166071, 34101166071, 6855156, 34116855156, 6769305, 34116769305
• Location on the vehicle: Front, Left, Right
• Category: Brake Disc Rotors

Purpose and vehicle placement

The presented set of front brake discs is designed for use on the front of the vehicle, on both the left and right sides. Such pairing of components allows for maintaining even wear and balanced braking force, which is particularly important in cars with dynamic characteristics, such as the BMW Z4 E85 series.

Placement on the front axle means that the discs are responsible for the majority of the braking force, which is why their proper selection is crucial for safety, driving stability, and the effectiveness of the ABS system and driver assistance systems.

Technical characteristics of the set

The set of discs with a working dimension of 325x25 has been developed for demanding users who expect precise braking system performance. The design of the discs is adapted to factory BMW calipers and brake pads, which facilitates installation and reduces the risk of improper component fitment.

The original BMW origin means maintaining factory manufacturing tolerances, appropriately selected working thickness, and friction surface geometry. Thanks to this, the discs work with other system components in a predictable manner, without the need for additional modifications.

Condition, origin, and benefits of choosing used parts

The offered set of brake discs is in used condition, which allows for significantly lowering service costs compared to purchasing new OEM components. For many BMW users, this is a reasonable compromise between quality and budget, especially during comprehensive work on the braking system.

Choosing original, used braking system components is often recommended where maintaining the vehicle's factory specification is important. Well-selected recycled discs allow for maintaining proper system performance parameters while simultaneously reducing operating costs.

To better understand how to safely use recycled components in the braking system and how to optimize service costs, it is worth reading the guide: Brake calipers under the microscope: How to effectively reduce braking system repair costs by choosing proven recycled parts.

Selection, compatibility, and reference numbers

The item has a dedicated OEM part number and associated interchangeable numbers, which facilitates unambiguous identification in BMW catalogs and parts selection systems. This allows for precise verification of the set's compatibility with a specific engine version and vehicle equipment, minimizing the risk of errors when ordering.

Before purchasing, it is recommended to compare catalog data and vehicle placement with the car manufacturer's information or the numbering of existing components to ensure full compatibility with the braking system of a given BMW unit.

Application in service and BMW braking system upgrades

The BMW E46 Z4 E85 Front Wheel Left Right Ventilated Brake Disc Set 325X25 will work well both for standard maintenance replacement and for broader service work within the braking zone. It can be used as a replacement for worn discs in vehicles used daily, as well as in cars used occasionally, where maintaining the original braking characteristics is important.

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

Summary

The original BMW front brake disc set for E46/Z4 E85 models is a solution for users who want to maintain factory braking parameters while controlling service costs. Precise fitment to the front axle, compatibility with factory calipers, and the ability to verify by reference numbers make this a practical choice for servicing the braking system in BMW cars.