BMW F30 Left N/S Trunk Lid Boot Tailgate Hinge Arm Estorilblau Estoril Blue B45

BMW F30 Left N/S Trunk Lid Boot Tailgate Hinge Arm in Estorilblau Estoril Blue B45 is an original body component from the Trunk lids and rear parts group, designed for precise installation on the left side of the vehicle. This is a used OEM part that allows for maintaining the factory hinge geometry, proper tailgate operation, and body color consistency in the characteristic Estoril Blue shade.

Specifications and technical data

• SKU: 7255637-EB
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7255637
• Substitutable numbers: 41007255637, 7255637, KZ
• Location on the vehicle: Left
• Color: Estoril Blau Metallic - B45
• Category: Boot & Hatch Lids

Purpose and function of the component

The presented left hinge arm is dedicated to the trunk lid in the BMW F30 series and is responsible for stable guidance and support of the lid during opening and closing. The placement on the left side ensures proper cooperation with the right hinge, which translates into even load distribution and reduction of stress within the tailgate and fenders.

The component belongs to the construction group responsible for:

• maintaining the trunk lid rotation axis in the correct position,
• ensuring smooth opening and closing movement,
• maintaining body gaps and lines consistent with factory specifications.

Estorilblau Estoril Blue B45 color and visual matching

The hinge arm is finished in Estorilblau Estoril Blue – B45 paint, characteristic of BMW sports configurations. Thanks to this, when replacing the component, it is possible to reduce or completely eliminate the need for additional painting, which shortens repair time and simplifies the visual matching process.

The factory finish in this shade allows for maintaining consistency with other body panels, which is particularly important for post-collision repairs or replacing individual components within the rear part of the vehicle.

Benefits of using an original tailgate hinge

Using an original left trunk lid hinge arm in a BMW F30 provides a number of practical operational benefits:

• Factory geometry – maintaining the correct position of the tailgate relative to the body, which facilitates the adjustment of the lock and seals.
• Compatibility with OEM mounts – mounting holes and attachment points correspond to factory solutions, which simplifies installation.
• Stable tailgate operation – proper guidance of the trunk lid reduces the risk of it sagging or rubbing against adjacent elements.
• Color consistency – the Estorilblau Estoril Blue B45 paint allows for maintaining a uniform appearance of the rear body section.

Application in BMW F30 body repairs

The left-side hinge arm will work well both for local repairs after mechanical damage and for comprehensive reconstruction of the rear body section. The component is particularly useful in situations where there has been:

• deformation or cracking of the original hinge,
• misalignment of the trunk lid operation after a collision,
• the need to replace the tailgate along with the hinge hardware.

Thanks to the preservation of the factory hinge design, it is possible to effectively restore the original settings of the tailgate, which is important for both the tightness of the trunk and the comfort of daily vehicle use.

Integration with other BMW tailgate components

The left hinge arm works with other components of the rear body section, such as the right side hinge, the trunk lid, lifting actuators, or perimeter seals. Proper selection and installation of this component affects:

• even load on the lifting actuators,
• stable closing of the tailgate without excessive pressure,
• maintaining the correct position of the lock relative to the striker.

This technical solution is particularly important in vehicles where precision of fit and repeatability of the operation of moving body parts are essential.

If you are planning a comprehensive repair or upgrade of the rear body zone in your BMW and need other elements from the same group, such as hinge arms for the opposite side, complete trunk lids, or additional brackets, check the available parts in the BMW Trunk lids and rear parts category.

To better plan service work and reduce vehicle downtime in the workshop, it is worth learning practical tips on using a wide warehouse assortment – more information can be found in the article No more weeks of waiting – how a wide assortment in one warehouse really shortens your car's downtime at the mechanic?.