BMW X3 Series E83 LCI Front Right O/S Engine Compartment Seal Trim

BMW X3 Series E83 LCI Front Right O/S Engine Compartment Seal Trim is an original body component from the Window seals and trims group, designed for installation on the right side of the vehicle's front section. It provides a tight, stable seal for the hood edge, which limits the ingress of water, dirt, and noise into the engine compartment and improves the acoustic comfort of the cabin. This is a practical solution for users who want to maintain the factory characteristics of the BMW X3 E83 bodywork.

Specifications and technical data

• SKU: 3400364
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400364
• Substitutable numbers: 51713400364, 3400364
• Location on the vehicle: Front, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the hood seal

The presented seal is matched to the front right part of the hood in the BMW X3 E83 and operates in the contact area between the hood and the body. Its purpose is to:

• limit the ingress of water and contaminants into the engine compartment,
• reduce hood vibrations and minimize rattling and knocking sounds while driving,
• improve acoustic insulation in the front part of the vehicle,
• maintain a stable contact line between the hood, the fender, and the cowl panel.

Thanks to its proper profile and fitment for the specific model, the seal works with factory mounting points, which facilitates installation and allows for maintaining the original body geometry.

Benefits of using an original BMW seal

The original hood seal dedicated to the BMW X3 E83 provides a number of practical advantages in daily operation:

• Precise fit – the component was designed for a specific X3 generation, ensuring an even contact line and allowing the hood to close without excessive pressure.
• Stable performance in the front zone – a correctly installed seal limits micro-movements of the hood at higher speeds, which affects the overall refinement of the bodywork.
• Engine compartment protection – reducing the amount of water and dirt entering under the hood helps keep the equipment in better condition and facilitates maintenance.
• Visual consistency – maintaining the factory contact line between the hood, the fender, and the cowl panel improves the overall aesthetics of the vehicle's front.

Installation characteristics and condition of the component

The seal is intended for installation in the front right part of the vehicle, in accordance with the factory body layout of the BMW X3 E83. The design provided by the manufacturer allows for installation in place of the original component, without the need for body modifications or additional profile adjustments.

The product comes from the BMW parts group and is offered as a used component, which allows for economical replacement while maintaining the vehicle's original specifications. This solution is particularly beneficial for post-accident repairs, replacing worn-out seals, or during restoration work in the front zone.

Application in service practice

Replacing the hood seal on the right side is recommended in situations where the existing component is brittle, cracked, deformed, or no longer provides adequate sealing. A correctly selected seal helps to:

• reduce wind noise around the right edge of the hood,
• limit the risk of corrosion in the area where the hood meets the body,
• maintain even pressure of the hood against the right side of the body after adjusting the lock and hinges.

For workshops and individual users, this means a simple, technically predictable service operation that improves driving comfort and the aesthetics of the vehicle's front.

If you are planning a comprehensive repair or upgrade of the body sealing zone in your BMW and need other components from the same group, such as window trims, additional edge seals, or protective profiles, check the available parts in the BMW window seals and trims category.

If you are considering broader service work on your car and want to better understand the differences between stock and modified components, as well as the specifics of selecting used components, it is worth reading the article Stock vs. sports suspension – design differences and is it worth buying used suspension parts?, which helps in consciously planning repairs and upgrades based on real technical parameters.