BMW 1 Series F20 F21 LCI Trunk Lid Hinge Left N/S Liquid Blue Metallic - B40

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

BMW 1 Series F20 F21 LCI Trunk Lid Hinge Left N/S Liquid Blue Metallic - B40 is an original body component designed for left-side installation in the facelift version. This used OEM part ensures a factory-standard fit, maintaining the correct geometry of the trunk lid operation and color consistency with the bodywork in the Liquid Blue Metallic shade.

Specifications and technical data

• SKU: 7239875-LBL
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7239875
• Substitutable numbers: 41007239875, 7239875, BG
• Location on the vehicle: Left
• Color: Liquid Blue Metallic - B40
• Category: Other Exterior Parts & Accessories

Purpose and compatibility

The presented trunk lid hinge is dedicated to BMW 1 Series F20/F21 facelift (LCI) models, where it is responsible for the stable guidance and support of the trunk lid on the left side of the vehicle. The component's design complies with BMW factory standards, facilitating installation in place of the original hinge without the need for structural modifications.

The left-side placement allows for the proper operation of the entire trunk opening and closing mechanism, while the precisely selected mounting geometry reduces the risk of stress on the body panels and the trunk glass.

Color and body fitment

The component is finished in the factory Liquid Blue Metallic – B40 color, which is both aesthetically and practically significant. When installed on a vehicle with the same paint code, it is possible to minimize or completely eliminate the need for repainting, reducing repair time and costs.

The metallic paint coating is adapted to operate in areas exposed to temperature changes, humidity, and trunk movement, ensuring a consistent appearance with other body elements when properly installed and maintained.

Technical characteristics and installation

The trunk lid hinge is designed as a structural body part, bearing the loads resulting from the weight of the lid and the operation of the actuators. Precise mounting points allow for the correct adjustment of gaps between the lid, fenders, and bumper, which is important for sealing and trunk interior acoustics.

During installation, it is recommended to:

• check the condition of the mountings on the body and the lid,
• correctly adjust the position of the lid before final tightening of the bolts,
• verify the operation of the lid through the full range of opening and closing after installation.

The used OEM part allows for maintaining the original operating characteristics of the mechanism, which is essential for post-accident repairs and when replacing worn-out service components.

Use in repairs and upgrades

This hinge is suitable both for the standard replacement of a damaged component and for the comprehensive reconstruction of the rear body section after a collision. Thanks to its factory origin, it is ideal for users expecting to maintain the original quality of trunk lid operation and proper fitment with seals and the lock.

If you are planning a comprehensive repair or upgrade of the rear body section of your BMW and need other components from the same group, such as reinforcements, mounts, or small brackets, check the available parts in the Other BMW category.

Technical support and equipment development

For users interested in a wider range of modifications and vehicle retrofitting, including the use of components from higher equipment versions, the guide on retrofitting and installing used OEM components may be helpful – check the article Retrofitting in VAG and BMW group cars: How to affordably upgrade your car using used parts from higher versions?.

If you are also interested in a comparison of technical solutions used in sports models of other brands, including differences in engine, brake, and chassis construction, take a look at the post Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of the design philosophy of components in the premium segment.