Crash Sensor Bracket Mercedes W221 W216 Airbag Impact Module Mount A2215458040

Crash Sensor Bracket Mercedes W221 W216 Airbag Impact Module Mount is a precision mounting component designed for securing the impact module in the front section of the vehicle body. It ensures stable positioning of the crash sensor on either the left or right side, which is crucial for the proper operation of the airbag system. Thanks to its factory-spec geometry and perfect fit for Mercedes construction, it serves as a safe service solution for post-accident repairs and SRS system diagnostics.

Specifications and technical data

• SKU: A2215458040
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2215458040
• Substitutable numbers: A2215458040, A 221 545 80 40, KD
• Location on the vehicle: Front, Left, Right
• Category: Airbag Parts

Purpose and function in the airbag system

The offered bracket belongs to the Airbag Parts category and is responsible for the mechanical mounting of the crash sensor in the front zone of the vehicle. Correct positioning of the crash sensor is essential for the airbag control unit to receive reliable information about the impact intensity and to initiate the appropriate sequence for deploying airbags and seatbelt tensioners.

The component is designed for installation in the front area of the vehicle, with the possibility of application on both the left and right sides. This design facilitates service and allows for flexible use of the bracket depending on the body configuration and the scope of the post-accident repair.

Construction and fit for Mercedes W221 / W216

The crash sensor bracket has been designed specifically for the Mercedes W221 and W216 platforms, maintaining the geometry required by the manufacturer. Properly shaped mounting points allow for:

• stable bolting of the impact module without stress on the sensor housing,
• precise alignment of the sensor relative to the controlled crumple zones,
• secure connection to the front body structure.

Such a fit reduces the risk of installation errors that could affect the sensitivity and response time of the SRS system. For workshops specializing in the Mercedes brand, this is a practical service solution that allows for restoring the factory operating conditions of the crash sensor.

Vehicle placement and service application

The bracket is intended for installation in the front body zone, with the option of mounting on the left or right side, according to the requirements of the specific repair. This versatility along the vehicle's axis facilitates:

• recreating the original sensor layout after a frontal or angled collision,
• replacing damaged mounting elements without interfering with the sensor structure,
• maintaining the correct geometry of the passive safety system.

In workshop practice, the crash sensor bracket is installed after verifying the condition of the front body structure and checking the proper operation of the entire airbag system.

Characteristics of the used component

The offered bracket is a used component, sourced from vehicle dismantling, which allows for economical repair while maintaining the original mounting geometry. For this type of part, it is crucial that:

• mounting surfaces are undeformed and free of cracks,
• screw points ensure secure seating of the bolts,
• the shape of the bracket corresponds to the factory design specifications.

A well-chosen, used crash sensor bracket allows for restoring the correct operating conditions of the sensor without the need for expensive replacements, which is particularly important for comprehensive post-accident repairs in premium class vehicles.

Integration with other safety system components

The crash sensor bracket works in conjunction with the impact module, wiring harness, and airbag control unit, forming a cohesive passive safety system. When planning a repair, it is also worth considering the condition of other components in this zone, such as other mounts, brackets, or structural elements of the front body.

If you are planning a comprehensive repair or upgrade of the passive safety zone in your Mercedes and need other elements from the same group, such as additional sensor mounts, module brackets, or SRS system mounting hardware, check the available parts in the Mercedes Airbag Parts category.

Technical support and part selection

When selecting components for post-accident repairs in premium vehicles, it is worth relying on proven solutions and original mounting geometry. To compare manufacturers' approaches to body construction and the use of OEM parts across different model generations, you can read an article discussing the differences between classic and modern MINI designs and the role of original components: Classic Mini vs modern MINI – how the construction has changed and which original Mini parts help preserve their character.

If you are considering a wider use of dismantled components in bodywork repairs and want to better understand how used parts can fit into a professional service standard for brands like Mercedes, the following guide may also be helpful: Replacing body parts with used ones – can dismantled bodywork parts look like new?.