BMW E90 E91 Diesel Engine Underbonnet Tray Shield Protection Screen 7059387

BMW E90 E91 Diesel Engine Underbonnet Tray Shield Protection Screen is a factory-original protective component mounted in the front part of the chassis, designed specifically for diesel engine versions. It effectively protects the lower part of the power unit from dirt, water, and minor mechanical damage. By maintaining the original geometry, it serves as a functional addition to the factory shielding system in your BMW.

Specifications and technical data

• SKU: 7059387
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7059387
• Substitutable numbers: 51757059387, 7059387
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Other Exterior Parts & Accessories

Purpose and function of the engine under-tray

The presented engine under-tray is designed for installation in the front part of the vehicle body, in the area under the power unit. Its task is to limit direct contact between engine components and water, mud, road salt, and small stones. This type of shield helps to:

• reduce the risk of mechanical damage to the lower engine components,
• limit corrosion of parts exposed to contaminants,
• maintain more stable operating conditions in the engine bay from the chassis side.

Thanks to its fitment for diesel engine versions, the proper clearance for the exhaust system and accessories characteristic of this powertrain variant is maintained.

Compatibility with BMW E90 / E91

The shield has been designed with the front chassis construction of the 3 Series E90 and E91 generations in mind. This means the mounting points are correctly positioned and the shape is tailored to the factory subframe and suspension components. In practice, this translates into:

• easier installation in place of the original shield,
• proper fitment to adjacent body components,
• maintenance of the ground clearance and geometry specified by the manufacturer.

Using a component that is structurally compatible with a given BMW generation allows for maintaining the integrity of the entire under-engine protection system.

Characteristics of the used component

The offered BMW engine under-tray comes from dismantling, which means it is a used part. Such components retain their original geometry and mounting method, while providing an economical solution for maintenance repairs. Before installation, it is recommended to perform a standard inspection of the mounting points and, if necessary, clean the surface of any dirt accumulated during previous use.

Benefits of installing an engine under-tray

Installing an engine under-tray in a BMW 3 Series brings a number of practical benefits in daily vehicle use:

• better protection of the lower part of the power unit against external factors,
• reduction of contaminants entering the engine bay from the chassis side,
• more orderly airflow under the car, which promotes stability at higher speeds,
• preservation of the factory look and completeness of the shields in the engine area.

For diesel-powered cars, which often operate in varied road conditions, a functional engine under-tray is significant for the long-term protection of components.

Completing the protective zone in your BMW

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional shields, wheel arch liners, or aerodynamic covers, check the available parts in the Other BMW category.

For drivers interested in comparing structural solutions in sports models of other brands, including chassis construction and mechanical component protection, an article describing the differences between high-performance versions and standard variants may be helpful – details can be found in the material Audi RS vs other models – what is hidden under the hood and chassis?.