Mercedes W211 Boot Trunk Lid Tailgate Tension Spring A2117570029

Mercedes W211 Boot Trunk Lid Tailgate Tension Spring is an original component of the tailgate lifting mechanism, designed for the W211 series models. Thanks to its factory design, it ensures predictable tailgate operation, improves daily comfort, and facilitates safe access to the luggage compartment.

Specifications and technical data

• SKU: A2117570029
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2117570029
• Substitutable numbers: A2117570029, A 211 757 00 29
• Category: Boot & Hatch Lids

Purpose and function of the boot spring

The boot spring in the Mercedes W211 is responsible for assisting the opening and stably holding the tailgate in the desired position. A properly selected component reduces the load on hinges, actuators, and the lock, which translates into a longer service life for the entire tailgate assembly.

Using an original spring within the Boot lids and tailgates category allows you to maintain the factory operating characteristics – the tailgate opens smoothly, without jerking, and its closing remains predictable and comfortable for the user.

Benefits of using an original Mercedes component

Choosing a boot spring dedicated to the W211 ensures:

• maintaining the correct tailgate opening assist force,
• consistency with the factory geometry of hinges and mounts,
• reduced risk of overloading the lock and actuators,
• more predictable tailgate behavior in both low and high temperatures.

As a result, the tailgate mechanism works stably, and the user does not have to compensate for deficiencies with poorly matched replacements or additional modifications.

Characteristics of the used component

The offered spring is a secondary market component, which allows for economical restoration of tailgate efficiency while maintaining the original Mercedes design. This type of solution is particularly beneficial for maintenance repairs, where both proper operation and control of service costs are important.

Before installation, it is recommended to perform a standard check of the condition of the tailgate mounts, hinges, and cooperating elements to fully utilize the potential of the spring and avoid excessive loads resulting from other faults in the rear body area.

Selection and integration with the tailgate system

The boot spring designed for the Mercedes W211 has been engineered to work with the factory system of hinges, actuators, and the lock. In practice, this means:

• easier installation without the need for structural modifications,
• correct tailgate guidance throughout the entire range of motion,
• maintaining the proper balance between opening force and closing.

Such a fit is particularly important in vehicles where the tailgate is used intensively – e.g., in daily city driving or when loading luggage frequently.

Expanding the service of the rear body zone

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as tailgate hinges, lifting actuators, or tailgate locks, check the available parts in the Mercedes boot lids and tailgates category.

For drivers interested in a broader approach to vehicle service – including the drivetrain – a guide on diagnostics and selection of clutch and dual-mass flywheel components may be helpful, available in the article Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain, which facilitates the planning of further service work on the car.