BMW E90 E91 Petrol Engine Underbonnet Tray Shield Protection Screen

BMW E90 E91 Petrol Engine Underbonnet Tray Shield Protection Screen is a factory-made protective component designed for installation in the front part of the engine bay in BMW vehicles with a petrol engine. It provides an effective barrier against dirt, water, and minor mechanical damage, stabilizing the operating conditions of the powertrain. Thanks to its design, which complies with the manufacturer's specifications, it is a safe choice for repairs and servicing of the engine area.

Specifications and technical data

• SKU: 7129341-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7129341
• Substitutable numbers: 51757129341, 7129341, 51757197247, 51757156561, 51757197248, 7197247, 7156561, 7197248
• Weight: 150
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Other Exterior Parts & Accessories

Function and role of the engine tray shield

The engine tray shield in the BMW E90/E91 series is responsible for protecting the lower part of the powertrain and auxiliary components from external factors. It protects against, among other things:

• splashing water and mud while driving in the rain or on unpaved surfaces,
• gravel particles and stones thrown up from under the wheels,
• excessive dirt accumulation on components in the front part of the engine bay.

Using such a shield helps maintain stable operating conditions for the petrol engine, reduces the risk of accidental damage, and facilitates subsequent diagnostics and servicing.

Purpose and fitment for BMW

The presented shield is designed for installation in the front area of the vehicle, where it serves as a lower engine protection plate. The design is intended for use with a petrol-powered drivetrain, which allows for compatibility with the factory air intake and cooling system in the BMW E90/E91 series.

Thanks to the use of an original BMW solution, the correct mounting points and geometry matched to the bodywork are maintained, which minimizes the risk of incorrect installation and unwanted vibrations. The product has assigned interchangeable part numbers, which facilitates compatibility verification with a specific equipment version.

Technical and functional characteristics

The engine tray shield has been designed to work in demanding road conditions, typical for the daily operation of a BMW. Notable features include:

• a design adapted to dynamic loads in the front chassis area,
• an arrangement of mounting points that allows for service removal and reinstallation,
• a weight selected so as not to excessively load the front of the vehicle, while maintaining adequate rigidity.

The used condition allows for an economical replacement of a damaged or missing shield while maintaining the original BMW design. This is a practical solution for post-accident repairs, chassis servicing, or restoring the car to full functionality after operation in harsher conditions.

Benefits of installation in BMW E90/E91

Using this engine tray shield in a BMW E90/E91 with a petrol engine brings a number of measurable benefits:

• Better protection of the powertrain – reduced contact with water, mud, and small debris from the road surface.
• More stable operating conditions for engine accessories – lower risk of dirt hindering cooling and servicing.
• Maintenance of the factory airflow geometry under the vehicle, which promotes the correct operation of the cooling system.
• Possibility of restoring the completeness of the lower engine bay cover after mechanical damage.

For users who are planning more extensive work within the engine bay, installing a properly selected shield is an important element in ensuring the durability and reliability of the vehicle.

Additional information and technical materials

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as covers, engine plates, or additional protective screens, check the available parts in the Other BMW category.

To compare design solutions used in sports versions of cars and standard variants, as well as to better understand the differences in engine and chassis construction, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the impact of shields and chassis components on vehicle operation.