BMW 5 Series E60 M5 Boot Lid Tailgate Tension Spring Shock Absorber 8040086

BMW 5 Series E60 M5 Boot Lid Tailgate Tension Spring Shock Absorber is an original component from the Boot lids and rear parts group, designed specifically to work with the opening and support mechanism of the rear lid in the BMW 5 Series E60 M5 sports sedan. Maintaining the correct spring characteristics is crucial for comfortable, controlled lifting of the boot lid and safe access to the luggage compartment. Choosing an original spring allows you to maintain the factory operating standards of the boot lid and reduces the risk of improper closing.

Specifications and technical data

• SKU: 8040086
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8040086
• Substitutable numbers: 51248040086, 8040086
• Category: Boot & Hatch Lids

Purpose and function of the BMW 5 Series E60 M5 Boot Lid Tailgate Tension Spring Shock Absorber

The boot lid spring in the BMW 5 Series E60 M5 is responsible for assisting the opening movement and stably holding the boot lid in the upper position. A correctly selected component ensures:

• controlled, smooth movement of the lid without jerking,
• adequate support force in the open position,
• reduced load on the hinges and lid mounts,
• safer operation of the boot in daily use.

Thanks to maintaining the factory operating characteristics of the spring, the boot lid reacts predictably, which is particularly important in a car with a sports character, such as the BMW 5 Series E60 M5.

Why it is worth choosing an original BMW component

The original boot lid spring from the BMW range has been designed for the specific weight and geometry of the M5 version lid, taking into account equipment and body rigidity. In practice, this means:

• factory fit to the mounting points in the body and lid,
• consistency with other elements of the opening mechanism,
• maintaining the spring force characteristics intended by the manufacturer throughout the entire operating range.

Using original solutions in the boot lid area reduces the risk of overloading the hinges, improper closing, or the lid falling too abruptly, which is important for both comfort and body durability.

Characteristics of the used component

The spring comes from dismantling, which allows maintaining compliance with the factory BMW specification while optimizing service costs. A used component of this type is a popular choice in situations where:

• the original spring has lost some of its force and the lid does not stay in the upper position,
• mechanical damage occurred during a rear-end collision,
• a repair restoring functionality is necessary without interfering with the lid structure.

Choosing a spring from the secondary market allows for maintaining consistency with the factory design, which is particularly important for users who care about technical correctness and the original character of the BMW M5.

Professional selection by OEM and interchangeable numbers

To ensure full compatibility with a specific vehicle configuration, the boot lid spring is identified by the OEM part number and associated interchangeable numbers. This allows for precise verification of compatibility with a given version of the BMW 5 Series E60 M5, without the need for modifying mounts or interfering with the lid structure. If necessary, the selection can be further confirmed based on vehicle data or BMW service documentation.

Expanding the service of the rear part of the BMW body

If you are planning a comprehensive repair or modernization of the rear body zone in your BMW and need other elements from the same group, such as lid hinges, actuators, or locks, check the available parts in the BMW Boot lids and rear parts category.

More about selecting original used BMW parts

If you want to better understand how to properly select original used BMW elements by OEM and interchangeable numbers and how they affect vehicle durability, it is worth reading the expert material: BMW – sports performance and precision. How do original used parts extend the life of the Bavarian icon?