Mercedes W204 Vertical Acceleration Sensor Holder Bracket Mount A2045456440

The Mercedes W204 Acceleration Sensor Impact Sensor Bracket is an original mounting element from the Brackets, Mounts, and Mounting Parts group, designed for precise sensor placement within the vehicle body. It ensures stable, repeatable sensor positioning, which is crucial for the proper functioning of safety and comfort systems in Mercedes cars.

Specifications and technical data

• SKU: A2045456440
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045456440
• Substitutable numbers: A2045456440, A 204 545 64 40
• Category: Mounts, Brackets & Hardware

Bracket Purpose and Function

The acceleration and impact sensor bracket for the Mercedes W204 model is responsible for rigidly and controllably mounting the measuring element to the vehicle's structure. Correct sensor mounting limits vibrations, minimizes the risk of displacement during a collision, and allows the vehicle's electronics to reliably interpret signals from the measurement system.

Using a dedicated bracket instead of universal solutions helps maintain the factory mounting geometry, which translates to the correct operation of passive and active safety systems.

Advantages of Using an Original Mercedes Bracket

Choosing an original bracket for the acceleration and impact sensor in a Mercedes W204 ensures:

• Factory fit to the mounting points in the body, with no modifications required.
• A constant, repeatable sensor position relative to the vehicle structure, facilitating diagnostics and calibration.
• Compatibility with factory wiring harnesses and accessories, without interfering with the electrical system.
• Consistency with service documentation and repair procedures used in authorized service centers.

This makes the bracket a practical solution for both replacing a damaged component and for post-accident repairs where restoring the original mounting configuration is essential.

Mounting Characteristics

This element belongs to the Brackets, Mounts, and Mounting Parts group, meaning it is designed for a stable, mechanical connection of the sensor to the body or a supporting component. The bracket's design allows for:

• Secure seating of the sensor in its designated manufacturer-specified location,
• Maintaining the correct direction of operation and orientation of the sensor,
• Minimizing unwanted play and micro-displacements during operation.

This solution promotes measurement repeatability and stable operation of systems that utilize data from the acceleration or impact sensor.

Product Condition and Practical Service Application

The offered bracket is a used part, which in practical service terms allows for an economical replacement of a damaged mount while maintaining the original manufacturer's specifications. For workshops and users, this means the ability to restore correct sensor mounting without resorting to aftermarket alternatives with uncertain fitment.

Prior to installation, a standard visual inspection is recommended to check for any deformations, cracks, or signs of previous repairs, to ensure proper load transfer and stable connection to the body.

Selection by OEM Number and Identification Support

The bracket is marked with a dedicated OEM part number and has assigned interchangeable numbers, which facilitates unambiguous identification in manufacturer catalogs and service systems. When selecting a part for a specific vehicle instance, it is advisable to use the VIN and technical documentation to confirm compatibility with the equipment version.

If you want to streamline the process of selecting mounting parts and other components by OEM number or VIN, a detailed guide will be helpful: Guide: How to Select the Correct Car Part by VIN and OEM Number. Here you will find practical tips, checklists, and examples of applications in daily service work.

If you are planning a comprehensive repair or upgrade of the sensor mounting area in your Mercedes and need other parts from the same group, such as additional brackets, mounts, or supports, check the available parts in the Mercedes Brackets, Mounts, and Mounting Parts category.