BMW 3 Series E92 E93 Front Left Brake Air Vent Duct N/S 7154417

BMW 3 Series E92 E93 Front Left Brake Air Vent Duct N/S is an original brake cooling system component, designed specifically for the driver's side front axle. Thanks to its precise profile and fitment for coupe and convertible body styles, it ensures a stable flow of cooling air to the brake disc and caliper, supporting safe and consistent braking performance.

Specifications and technical data

• SKU: 7154417-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7154417
• Substitutable numbers: 51747154417, 7154417
• Location on the vehicle: Front, Left
• Category: Grilles

Purpose and technical function

This component belongs to the Grilles and radiator grilles category, but its actual function is strictly technical – it is responsible for directing the airflow from the front of the vehicle to the front left brake. It is mounted in the bumper and wheel arch area, on the front left side of the vehicle.

A properly functioning air duct helps reduce brake overheating during intensive driving, which translates into:

• more consistent braking performance across a wide temperature range,
• more stable heat dissipation from the disc and caliper,
• lower risk of brake efficiency loss under heavy load.

Compatibility with BMW 3 Series E92/E93

The duct has been developed for BMW 3 Series E92 (coupe) and E93 (convertible) body styles, taking into account the geometry of the front bumper, wheel arch, and airflow routing. This means:

• factory fitment to the front left mounting points,
• compatibility with the original aerodynamic structure,
• no need for body modifications during installation.

As a result, this component can be used both as a replacement for a damaged duct and when restoring the full functionality of the brake cooling system after a collision or front-end repairs.

Characteristics of the used component

The part comes from dismantling and has the status of a used original BMW component. In practice, this means it retains the factory geometry, mounting points, and compatibility with other brake cooling and front body components. For many premium car owners, this is a reasonable compromise between OEM quality and purchase cost.

A used air vent duct is particularly useful in situations where the priority is to restore proper airflow to the brakes without having to invest in a new set of body components.

Benefits of using an original air duct

Using a factory air duct in the BMW 3 Series E92/E93 offers several significant advantages:

• Properly directed airflow – the design, matched to the shape of the bumper and wheel arch, allows for effective cooling of the front left brake.
• Consistency with factory aerodynamics – the component works in harmony with the grille and radiator cover, without disrupting airflow to the engine radiator and other sub-assemblies.
• Easier installation – original mounts and shape reduce the time required for replacement and the risk of improper seating.

For drivers who operate their BMW dynamically, a functional brake air duct is an important element in maintaining stable brake system parameters.

Expansion of the air intake system and further upgrades

If you are planning a comprehensive repair or upgrade of the front end and brake cooling system in your BMW and need other components from the same group, such as additional inlets, air guides, or covers near the grille, check out the available parts in the BMW Grilles and radiator grilles category.

To better understand why original used components for premium cars are becoming an increasingly popular choice for repairs and upgrades, it is worth reading the market analysis in the article Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend.