BMW E90 E91 E92 E93 LCI N57 Diesel Engine Acoustic Cover 7800064

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW E90 E91 E92 E93 LCI N57 Diesel Engine Acoustic Cover is an original component designed for BMW models with a diesel engine, mounted in the front part of the engine bay. This type of cover serves an important protective function, shielding the power unit from dirt, moisture, and mechanical damage. Thanks to the use of a factory OEM solution, the proper geometry and fitment to the body structure are maintained, which translates into stable mounting and predictable vehicle behavior.

Specifications and technical data

• SKU: 7800064
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800064
• Substitutable numbers: 7800064, 11147800064
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Other Engine Parts

Purpose and function of the engine cover

The engine cover in the LCI version for the 3 Series E90, E91, and E93 has been designed to protect sensitive components of the diesel power unit. Its task is to:

• limit the ingress of dirt, mud, and water into the engine area,
• dampen some of the vibrations and noise generated by the operation of the power unit,
• stabilize airflow in the front part of the vehicle,
• protect auxiliary components from minor impacts from the road surface.

Thanks to the proper fit to the front body structure, the cover works in conjunction with other engine bay components, which helps maintain predictable operating conditions for the power unit.

Compatibility with body versions and power unit

The presented BMW E90 E91 E92 E93 LCI N57 Diesel Engine Acoustic Cover is intended for installation in the front part of the vehicle in sedan, touring, and convertible versions. The design has been developed for diesel units, which means it is appropriately shaped for the specific layout of diesel engine auxiliary components.

Such fitment allows for:

• maintaining proper clearances between the cover and engine components,
• trouble-free service access after removing the cover,
• maintaining the factory concept of airflow management and thermal protection.

Characteristics of the used component

The cover comes from dismantling, which means it is a used part that retains its factory geometry and mounting method. In practice, this translates into:

• the possibility of installation in place of the original cover without modifications,
• preservation of serial mounting points in the front part of the body,
• visual consistency with other engine bay components.

Choosing a used OEM component is beneficial wherever compliance with the factory design and predictable behavior during operation are important.

Benefits of using an original engine cover

Using an original BMW engine cover in E90, E91, and E93 LCI models brings a number of practical benefits:

• maintaining the factory level of protection for the power unit against external factors,
• reducing the risk of accelerated corrosion and dirt accumulation in the engine area,
• maintaining proper aerodynamics in the front part of the vehicle,
• easier diagnostics and service thanks to the predictable removal method.

For users operating the car in varied road conditions, including roads with poorer surfaces, a properly selected engine cover is an essential protective element.

Part selection by numbers and technical support

The component has an assigned OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. In practice, this allows for verifying compatibility with a given facelifted BMW 3 Series, especially in the case of different equipment variants and diesel units.

If you are interested in a broader context of selecting powertrain components and comparing solutions used in high-performance cars, it is worth reading an article discussing the differences in the construction of units and chassis in sports models – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

Expanding the scope of service work

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 additional covers, mounts, or complementary engine bay trim elements, check the available parts in the Other BMW category.