Audi Q7 4M Rear Brake Caliper Housing Braking Unit 350X2 Left N/S 4M0615403F

Audi Q7 4M Rear Brake Caliper Housing Braking Unit 350X2 Left N/S is an original component from the Brake calipers and carriers group, designed for the rear left axle of the vehicle. This used OEM component ensures a proper fit for the Audi Q7 4M generation braking system, which facilitates maintenance and reduces the risk of installation issues. It is a solution for users who expect factory geometry and stable braking system performance parameters.

Specifications and technical data

• SKU: 4M0615403F
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0615403F
• Substitutable numbers: 4M0615403F, 4M0 615 403 F
• Location on the vehicle: Rear, Left
• Part type: Brake Caliper
• Category: Calipers & Brackets

Purpose and fitment for Audi Q7 4M

The presented caliper has been designed specifically for operation on the rear left axle of the Audi Q7 4M, which guarantees compatibility with the suspension and braking system design of this model. Proper placement on the vehicle translates into correct interaction with the brake disc of the intended diameter and with factory equipment, such as brake pads, carriers, or brake lines.

Thanks to the use of an original solution, the correct braking force characteristics on the rear axle are maintained, which is important for both braking efficiency and vehicle stability during intense deceleration.

Construction and function of the brake caliper

The brake caliper in the Audi Q7 4M is responsible for precisely pressing the pads against the disc, ensuring repeatable and predictable system operation. The design intended for a large SUV must withstand high thermal and mechanical loads, which is why it is essential to use a component with factory specifications. The used OEM caliper retains the original geometry of the guides and the housing, which promotes even pad wear and stable piston operation.

A properly selected rear left caliper supports the correct operation of braking assistance systems, such as brake force distribution between axles, and also affects user comfort – it reduces vibration, noise, and uneven brake engagement.

Benefits of using an original used caliper

Choosing a used, original caliper for an Audi allows you to combine cost control with the preservation of factory performance parameters. Compared to replacements of unknown origin, the OEM component offers:

• reliable compatibility with the braking system of a specific Audi Q7 4M version,
• maintenance of the manufacturer-intended braking characteristics on the rear axle,
• easier installation thanks to factory mounting points and correct geometry.

For workshops and individual users, this means a lower risk of installation problems and stable system operation after replacement. The original brake caliper is particularly recommended where vehicle predictability and compliance with the manufacturer's assumptions are important.

Professional selection and operational safety

The selection of a rear left caliper for an Audi Q7 4M should always take into account compatibility with the braking system of the specific vehicle version. In practice, this means verifying the OEM part number and interchangeable numbers in the product's technical specification, as well as comparing the component's design with the previously installed caliper. Such an approach minimizes the risk of mismatch and ensures proper interaction with the brake disc and pads.

To better prepare for purchasing a used braking system component, it is worth using the practical tips included in the article: Second-hand braking system: how to safely choose discs, calipers, and ABS?. This is a helpful checklist for those who want to consciously choose components from the secondary market.

Audi braking system expansion – related components

If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other elements from the same group, such as additional calipers, carriers, or mounting elements, check the available parts in the Audi brake calipers and carriers category.

Such an approach allows you to select a coherent set of components, which facilitates maintenance and helps maintain the uniform performance characteristics of the entire braking system.