BMW 3 Series E90 E91 4 Diesel Engine Underbonnet Tray Shield Protection Screen

Visual condition of the part

The product shows signs of use visible in the photos.

BMW 3 Series E90 E91 4 Diesel Engine Underbonnet Tray Shield Protection Screen is a factory-made protective component designed for installation in the front part of the engine bay in diesel-powered versions. It provides effective shielding for the lower drive area against dirt, water, and minor mechanical damage. Thanks to its design, which complies with the manufacturer's specifications, it is a safe choice for powertrain repairs and maintenance.

Specifications and technical data

• SKU: 7059387-4
• 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 shield is designed for installation in the front part of the chassis, in the area under the engine, in BMW 3 Series E90/E91 models with diesel engines. Its task is to limit the contact of engine components and accessories with water, mud, road salt, and small stones, which promotes stable operation of components and helps keep the engine bay clean.

The properly selected shape of the shield also helps in directing airflow under the vehicle, which can support predictable vehicle behavior at higher speeds and reduce unwanted turbulence in the undercarriage area.

Benefits of installation in a BMW with a diesel engine

In cars with a diesel engine, the lower engine shield is of particular importance due to the presence of additional accessories and the specific nature of the diesel unit's operation. A properly selected plate:

• protects the lower parts of the engine and accessories from damage resulting from contact with the road surface or minor obstacles,
• limits the ingress of contaminants into the engine bay,
• can reduce noise coming from the engine area,
• supports the maintenance of predictable operating conditions in the front part of the vehicle.

For the user, this means more predictable operation and better protection of key components in daily city and extra-urban driving.

Mounting characteristics and fitment

The shield has been developed with the factory mounting points in the front part of the BMW 3 Series E90/E91 in mind, which facilitates installation and allows for maintaining compliance with the original chassis geometry. The design intended for use with the diesel engine helps avoid collisions with accessory elements characteristic of this powertrain version.

The product comes from a group of used parts, which is a beneficial solution for maintenance repairs when the priority is to maintain the original vehicle construction at reasonable service costs.

Condition of the element and service application

As a used part, the shield is a good choice in situations where the existing plate has been mechanically damaged, deformed, or has lost its mountings. Replacing it with an original element of this type allows for restoring the factory level of protection for the lower part of the engine and improving the overall completeness of the undercarriage housing.

A solution of this type is particularly useful after collisions with road obstacles, on roads with poor surfaces, or in cars used intensively, where the lower body elements are exposed to frequent contact with contaminants.

Related elements and additional information

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, mountings, or undercarriage housing elements, check the available parts in the Other BMW category.

When working in the drive and chassis area, it is also worth paying attention to the structural differences between individual engine versions and sports variants of the models – helpful information in this regard can be found in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses the impact of changes in the engine, brakes, and chassis on the selection of appropriate components.