BMW 3 Series E90 320si N45 Underfloor Coating Centre Rear Engine 7175400

The BMW E90 Underbody Shield 7175400 is an original body part from the Miscellaneous category, designed for installation in the rear underbody of BMW 3 Series E90 models. This robust, black underbody shield helps streamline airflow beneath the vehicle and protect sensitive components in the rear section of the car.

Specifications and technical data

• SKU: 7175400
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7175400
• Substitutable numbers: 51757175400, 7175400
• Location on the vehicle: Rear
• Color: Black
• Category: Other Exterior Parts & Accessories

Purpose and Function of the BMW E90 Underbody Shield

This underbody shield has been specifically designed for the BMW E90 chassis, intended for installation in the rear area of the vehicle. It stabilizes airflow under the car, contributing to smoother suspension operation and reducing turbulence around the rear axle. Additionally, it acts as a protective barrier for components located in the rear underbody, minimizing the risk of mechanical damage from small stones or road debris.

Construction, Color, and Fitment

The shield's construction is adapted to the factory mounting points in the BMW E90, facilitating installation and ensuring a proper fit to the underbody. The black color is consistent with most factory elements of the lower body, ensuring the shield blends in visually and maintains the car's original appearance. Its precisely contoured geometry allows for proper drainage of water and debris, while also preserving the ground clearance as intended by the manufacturer.

Condition, Origin, and Benefits of Choosing BMW Parts

This part comes from the BMW range and is a used item, meaning it retains its original geometry and compatibility with factory mounting points. Choosing an original underbody shield helps avoid fitment issues often encountered with aftermarket replacements of varying quality. This is a particularly beneficial solution for collision repairs or restoring a car to a near-original condition, where adherence to the manufacturer's technical documentation is crucial.

Why Install a Rear Underbody Shield

Installing a rear underbody shield on the BMW E90 offers a range of practical benefits:

• Enhanced protection for components in the rear underbody against dirt and minor mechanical damage,
• Streamlined airflow under the car, promoting stability at higher speeds,
• Reduced accumulation of mud and salt in critical areas, which can positively impact component durability,
• Maintaining a cohesive appearance of the lower body according to BMW's design specifications.

Other Parts and Technical Knowledge

If you are looking for other items in the Miscellaneous category dedicated to this brand, check out our offer for other BMW parts, where you will find a wide selection of compatible body and underbody components.

To better understand the differences in underbody construction and the impact of shields on suspension performance, we recommend reading the guide: Audi RS vs. Other Models – What Lies Beneath the Hood and Underbody?. This article discusses, among other things, the importance of a properly designed underbody and protective elements in cars with diverse performance characteristics.