BMW 3 F30 F31 328i N20 245 hp Rear Left N/S Suspension Leg Brake Caliper

BMW 3 F30 F31 328i N20 245 hp Rear Left N/S Suspension Leg Brake Caliper is an original dismantled part designed for installation on the rear axle on the driver's side. Combining the suspension strut with the brake caliper ensures the consistency of the chassis and braking system, which translates into stable handling and predictable vehicle behavior during daily use.

Specifications and technical data

• SKU: 6792523-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6792523
• Substitutable numbers: 33326792523, 6792523, 34216850857, 6850857, 33207637445, 7637445, 34216864900, 6864900, 34216792229, 6792229, BG
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the BMW 3 F30/F31 328i chassis

The presented item is a complete rear left suspension assembly integrated with a brake caliper, dedicated to the BMW 3 Series F30/F31 328i model with the 245 hp N20 engine. The placement on the vehicle is the rear driver's side, which is crucial when selecting parts for the rear axle – swapping sides is not permitted due to geometry and mounting points.

In practice, this assembly is responsible for:

• transferring loads from the body to the wheel on the left side of the rear axle,
• maintaining proper suspension geometry in terms of camber and toe,
• cooperating with the braking system via the integrated caliper,
• stabilizing the vehicle during braking, acceleration, and cornering.

Benefits of using an original suspension assembly with a caliper

Using an original suspension assembly with a brake caliper in a BMW F30/F31 allows for maintaining factory handling and braking parameters. An element from this group:

• maintains proper cooperation between the suspension and the braking system, which reduces the risk of uneven wear of tires and discs,
• ensures the correct position of the hub and wheel relative to the body, which is important for the operation of ABS/ESP systems,
• facilitates service – the mechanic works on a factory design, without the need for adaptations or modifications.

For the user, this means predictable car behavior, better vehicle control, and consistency in the operation of all systems responsible for driving safety.

Installation characteristics and fitment

The rear left suspension assembly with a brake caliper is structurally prepared for installation at the factory mounting points of the BMW 3 Series F30/F31. The placement on the vehicle as rear – left side determines the geometry of the arm, the position of the shock absorber mounts, the spring, and the brake caliper relative to the hub and body.

When selecting parts, it is worth paying attention to:

• compatibility with the 328i N20 245 hp engine version,
• maintaining the correct installation direction (rear axle left side only),
• consistency with other suspension and braking system components on this axle.

This helps avoid problems with geometry, incorrect wheel alignment, or uneven brake performance on the left and right sides.

Condition, origin, and practical application

The offered item comes from dismantling and is classified as a used original BMW component. This type of part is particularly attractive in situations where it is necessary to replace the entire assembly after mechanical damage (e.g., after a collision, hitting a curb, or suspension component failure), and the priority is to maintain factory design and fitment.

Choosing a used, original suspension assembly with a brake caliper allows you to:

• reduce repair costs compared to new parts,
• maintain the factory characteristics of the suspension and brakes,
• limit the risk of compatibility issues typical of aftermarket replacements of uncertain origin.

To maximize the potential of such a component and extend its service life, it is worth applying proper maintenance and regular chassis inspections. Practical tips in this regard can be found in the article How to extend the life of used car parts?, which discusses, among other things, good practices regarding suspension and dismantled elements.

Expansion and completion of the BMW suspension system

If you are planning a comprehensive repair or upgrade of the suspension area in your BMW and need other elements from the same group, such as additional struts, wishbones, or complete rear axle modules, check the available parts in the category BMW suspension replacement kits.

For those considering broader modifications or tuning of the chassis using aftermarket components, the guide Buying used car parts – the most common mistakes when choosing tuning parts may also be helpful, as it indicates how to consciously select used elements and avoid typical pitfalls.