BMW E90 E91 E92 E93 LCI 325d 330d 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 325d 330d N57 Diesel Engine Acoustic Cover is an original engine bay component designed for N57 diesel units in facelifted 3 Series models. It provides effective noise insulation for the diesel engine and organizes the space in the front part of the vehicle, improving acoustic comfort and aesthetics. Thanks to the factory OEM design, the cover maintains a proper fit to the mounts and accessories in the engine bay.

Specifications and technical data

• SKU: 7800064-2
• 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 N57 engine cover

The presented cover is designed for installation in the front part of the engine bay in facelifted BMW 3 Series models of the E90, E91, E92, and E93 generations, equipped with the N57 diesel unit. Its main task is to reduce noise and vibrations characteristic of diesel engines, as well as to protect the upper part of the power unit from dirt and minor mechanical damage.

This component also serves an organizational role – it covers wires, mounts, and parts of the equipment, which makes it easier to keep the engine bay clean and improves the visual perception of the entire front area of the vehicle.

Construction and fitment for BMW 3 Series LCI

The cover was manufactured as an original BMW part, which translates into correct geometry, spacing of mounting points, and compatibility with factory brackets in the engine bay. The applied design combines the function of a cover with the function of sound insulation – the internal material structure dampens the operating sounds of the N57 unit, while the outer surface provides an aesthetic finish to the top of the engine.

Thanks to this, the installation proceeds in a predictable manner, without the need for modifications or adjustments, and the whole assembly forms a coherent system with other components in the front part of the vehicle after installation.

Benefits of using the original acoustic cover

Using a factory acoustic cover in a BMW with an N57 engine brings a number of practical benefits:

• reduction of diesel engine noise penetrating into the passenger cabin,
• protection of the upper part of the engine from dust and minor contaminants,
• organized look of the engine bay, especially important during inspections and service,
• maintenance of compliance with the factory BMW vehicle specification.

For users who pay attention to engine refinement and engine bay aesthetics, such a cover is a practical addition to the powertrain, supporting the comfort of daily vehicle operation.

Condition, origin, and service application

The offered cover belongs to the group of used parts, which allows for an economical replacement of a damaged or missing cover while maintaining the original BMW specification. This solution is particularly beneficial for post-accident repairs, filling in gaps after previous interventions in the engine bay, or during gradual vehicle restoration.

The element is suitable for use in diesel vehicles where a cover for the upper part of the power unit in the front zone of the engine bay is required. Choosing an original cover allows you to maintain technical consistency with other powertrain components.

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, insulation, or additional panels mounted in the engine bay, check the available parts in the Other BMW category.

Technical knowledge and BMW project development

For those interested in comparing technical solutions used in different brands and models, including sports designs with increased power, material discussing the differences in the construction of engines, braking systems, and chassis may be useful. In this context, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how premium manufacturers design key components in high-performance cars.