BMW F20 F21 LCI Hinge Trunk Boot Lid Left N/S Midnight Blue Metallic - B38

Left trunk lid hinge for BMW F20/F21 LCI in Midnight Blue Metallic B38 is an original body part designed for facelifted 1 Series models. Thanks to its factory geometry and fit, it ensures proper operation of the trunk lid and visual consistency with the body paint.

Specifications and technical data

• SKU: 7239875-MBM
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7239875
• Substitutable numbers: 41007284523, 7284523, 41007239875, 7239875
• Location on the vehicle: Left
• Color: Midnight Blue Metallic - B38
• Category: Other Exterior Parts & Accessories

Purpose and Function of the Part

The presented left trunk lid hinge for BMW F20/F21 LCI is responsible for the stable guidance and support of the trunk lid on the driver's side. A correctly selected hinge:

• maintains the correct geometry for opening and closing the lid,
• minimizes stress on the panel and lock,
• reduces the risk of the lid's edge rubbing against the body.

This is particularly important after body repairs or lid replacement, when it is necessary to maintain the factory mounting points and the operating range of the mechanism.

Midnight Blue Metallic B38 Paint Color and Match

The hinge is factory painted in the Midnight Blue Metallic B38 shade, allowing for an aesthetic match with the body in the same color. In many cases, this enables installation without the need for additional painting, which reduces repair time and the cost of preparing the part.

For vehicles with this paint code, the hinge is a visually cohesive component, helping to maintain a uniform color line in the rear body area.

Vehicle Placement and Installation Aspects

The part is intended for installation on the left side of the vehicle, in the area where the trunk lid is attached to the roof and fender structure. This placement requires maintaining appropriate rigidity and precise alignment with:

• the trunk lid,
• the mounting point in the body,
• the lifting mechanism (gas struts, springs – if present in the specific configuration).

The original hinge design facilitates the adjustment of gaps between the lid and fenders and proper closing without excessive force.

Characteristics of a Used Part

As an original, used BMW part, the hinge retains its factory geometry and is a good alternative to aftermarket parts with uncertain fit. This type of part is particularly useful for:

• local post-accident repairs of the rear body section,
• replacing a damaged or bent hinge after a collision,
• restoring proper lid operation after prolonged use.

Choosing a used OEM part allows for compliance with the vehicle's factory specifications at a reasonable cost.

Selection by Numbers and Compatibility

The presented hinge belongs to the group of original BMW parts for which dedicated catalog numbers and interchangeable numbers are available. This facilitates compatibility verification with a specific facelifted F20 or F21 body version, especially when selecting by VIN or based on service documentation.

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

To better understand the structural differences between sports and standard car versions – including their impact on the selection of body, suspension, and braking system components – it is worth reading the article Audi RS vs. Other Models – What's Under the Hood and Chassis?, which shows how manufacturers differentiate components based on model version.