BMW F40 Boot Trunk Lid Tailgate Gas Pressurized Spring 7456042

BMW F40 Boot Trunk Lid Tailgate Gas Pressurized Spring is a factory-original component of the trunk lid lifting and support mechanism, designed for the 1 Series F40 generation models. Thanks to its precise operating characteristics, it ensures stable opening and closing of the tailgate, improving the car's daily functionality and the comfort of using the luggage compartment. This is a practical solution for those looking to restore the proper operation of the tailgate after the original part has worn out.

Specifications and technical data

• SKU: 7456042
• Condition: Used
• OEM Part Number: 7456042
• Substitutable numbers: 7456042, 51247456042, PK
• Category: Other Exterior Parts & Accessories

Purpose and function of the gas spring

The tailgate gas spring in the BMW F40 is responsible for the controlled lifting and holding of the lid in a set position. Properly selected gas force reduces the load on hinges and bodywork components, which translates into more uniform operation of the entire system. Using the original design allows for maintaining the factory movement characteristics of the tailgate, without jerking or unwanted play.

This component is particularly important in daily vehicle use – from convenient luggage loading and user safety to protecting the tailgate itself from uncontrolled dropping. Replacing a worn-out gas spring with a functional component allows for restoring predictable tailgate behavior throughout its full range of motion.

Benefits of using the original BMW F40 gas spring

Using a gas spring dedicated to the BMW F40 provides a number of practical advantages:

• preservation of factory mounting geometry and attachment points,
• properly selected support force, matched to the weight of the lid,
• smooth opening and closing without excessive strain on the hinges,
• consistency with other components of the tailgate system.

As a result, the user receives a part that works with the bodywork and hinges according to the manufacturer's specifications, which is important for both comfort and the durability of the entire assembly.

Product condition and service application

The offered gas spring comes from the secondary market, making it an attractive solution for users looking for an economical repair while maintaining the original design. This type of component works well in:

• accident and bodywork repairs,
• maintenance service after the natural wear of the factory gas spring,
• restoring full tailgate functionality in fleet and private vehicles.

Choosing an original solution from the secondary market allows for cost reduction while maintaining compliance with the vehicle's factory specifications.

Selection and compatibility with BMW F40

To properly select the gas spring for a specific version of the BMW F40, it is worth verifying compatibility with the part number and any interchangeable numbers in the service documentation or the manufacturer's catalog. This ensures that the component will work with the given body configuration and equipment. If necessary, comparing the design and working length with the currently installed gas spring may also be helpful.

If you are planning a broader modernization of the car, including elements that improve performance or the chassis, it is worth reading the material comparing sports versions of cars with standard variants – you will find it in the article Audi RS vs other models – differences in engine, brakes, and chassis, which shows how manufacturers design components for durability and operating characteristics.

Practical installation and maintenance tips

When replacing the tailgate gas spring, it is recommended to:

• secure the tailgate against falling using a support or the assistance of another person,
• check the condition of the ball sockets and mounts in the bodywork,
• verify the operation of the tailgate in the full range after installation – from minimal opening to maximum extension,
• assess the symmetry of operation if the vehicle uses more than one gas spring.

Such an approach helps avoid excessive stress on the hinges and ensures even load distribution on the structure. In the case of expanding or modernizing other areas of the vehicle, it is also worth browsing the parts offer in broader categories, using links to relevant product groups, such as the guide on purchasing second-hand equipment components, which discusses the practical aspects of selecting used components.