BMW 3 Series E90 E91 3 Diesel Engine Underbonnet Tray Shield Protection Screen

BMW 3 Series E90 E91 3 Diesel Engine Underbonnet Tray Shield Protection Screen is a factory protective element mounted in the front part of the chassis, designed specifically for diesel engine versions. It is responsible for shielding the lower area of the power unit from water, dirt, and minor mechanical damage, improving component durability and operational comfort. As an original BMW component, it ensures a proper fit to the body structure and mounting system.

Specifications and technical data

• SKU: 7059387-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7059387
• Substitutable numbers: 51757059387, 7059387, BG
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Other Exterior Parts & Accessories

Purpose and function of the engine shield

The presented engine shield is intended for installation in the front part of the vehicle, in the engine compartment area. Its task is to limit the contact of engine components with water, mud, road salt, and small stones, which can accelerate corrosion and cause operational damage. Thanks to its tailored geometry, it also improves airflow direction under the car, which promotes stable operating conditions for the components.

Compatibility with diesel units

The shield has been developed for BMW vehicles powered by diesel fuel, where the lower engine layout and accessories have a different configuration than in gasoline versions. The appropriately selected shape and mounting points allow for seamless integration with factory body and drivetrain elements, without the need for modifications. This solution is particularly beneficial for servicing cars used intensively in more difficult road conditions.

Characteristics of the original BMW part

As an element from the BMW line, the engine shield maintains factory standards of workmanship and construction. This means:

• consistency with original mounting points in the body,
• stiffness and resistance to typical road loads designed by the manufacturer,
• compatibility with factory shields of adjacent chassis zones.

Thanks to this, the installation proceeds in a predictable manner, and the entire protective system under the engine maintains the proper geometry and tightness as intended by the manufacturer.

Condition, service application, and benefits of installation

The item comes from disassembly and is offered as a used part, which allows for economical vehicle repair while maintaining the original design specification. This type of shield is suitable both for replacing a damaged plate after contact with an obstacle and for supplementing a missing element in a car operated without factory lower engine protection.

The main benefits of using this shield include:

• better protection of the lower part of the power unit and accessories,
• reduction of dirt in the engine compartment, which facilitates leak diagnostics,
• more orderly airflow under the vehicle.

Expanding engine zone protection in 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 covers, plates, or additional protective accessories, check the available parts in the Other BMW category.

For drivers interested in comparing technical solutions used in sports constructions, including engine and chassis design, an article discussing the differences between high-performance versions and standard models may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.