Engine Hood Bonnet BMW X3 E83 E83N LCI Sound Insulating Cover 3400049

BMW X3 E83 E83N LCI Hood Insulation Sound Deadening is a factory part from the Hoods category, specifically designed for the engine bay of the facelifted BMW X3 E83 generation. It is responsible for reducing engine noise and protecting the inner side of the hood from temperature and dirt, ensuring more comfortable operating conditions for components.

Specifications and technical data

• SKU: 3400049
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400049
• Substitutable numbers: 51483400049, 3400049, 51483451622, 3451622
• Category: Bonnet Panels

Purpose and Fitment for BMW X3 E83 / E83N LCI

The presented hood insulation sound deadening is an original component of the engine bay for the BMW X3 E83 and E83N LCI versions. It has been developed considering the hood geometry of these models, which translates to proper adhesion to the panel and stable mounting at factory points.

This ensures that the correct hood line is maintained after installation, and the damping material works within the zones intended by the manufacturer, without the risk of collision with engine accessories.

Acoustic and Thermal Function

The insulation serves a dual role in the engine bay:

• it limits the penetration of noise from the engine into the cabin and outside the vehicle,
• it stabilizes thermal conditions on the inner side of the hood, protecting the paint and metal structure from prolonged exposure to high temperatures.

The appropriately selected density and structure of the damping material allow for the reduction of hood vibrations and resonances, which improves overall acoustic comfort during driving and idling.

Characteristics of a Used Part

The offered insulation comes from secondary circulation, meaning it is a used part that retains its intended functionality. This type of component is a good choice when the original sound deadening in the vehicle has worn out, been mechanically damaged, or removed during previous repairs.

Using original sound deadening from the aftermarket allows for maintaining the structural integrity of the engine bay, without the need for universal mats or custom cutting of material.

Benefits of Installing Hood Insulation Sound Deadening

Replacing or supplementing the hood insulation in the BMW X3 E83 / E83N LCI brings a number of practical benefits:

• improved acoustic comfort inside the vehicle, especially at higher engine speeds and loads,
• better protection of the inner side of the hood from temperature and contaminants from the engine bay,
• maintenance of the factory appearance of the engine bay, which is important for technical inspections and car resale,
• reduction of hood panel vibrations and resonances, contributing to the subjective feeling of vehicle solidity.

Professional Selection and Other BMW Hoods

If you are looking for other parts from the BMW Hoods category for your car, visit the dedicated subpage where you will find a wide selection of products such as panels, reinforcements, or additional sound deadening: BMW Hoods.

More About Used Car Parts

Are you considering wider use of aftermarket components in your vehicle and want to better understand the principles of their selection and installation? Check out a practical guide that discusses, among other things, compatibility, OEM markings, and best practices when purchasing used modules and sensors: guide to used automotive electronics and OEM part selection.