Mercedes CLA C117 Pedestrian Protection Air Unit Crash Impact Sensor A1179056900

Mercedes CLA C117 Pedestrian Protection Air Unit Crash Impact Sensor is a specialized component of the active safety system, responsible for detecting collisions in the front body area. As an original Mercedes component, it ensures proper cooperation with the vehicle's factory electronics and stable operating parameters. This used sensor allows for a technically correct repair of the pedestrian protection system while maintaining cost-effective service.

Specifications and technical data

• SKU: A1179056900-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1179056900
• Substitutable numbers: A1179056900, A 117 905 69 00
• Category: Lidar & Radar Sensors

Function and role in the safety system

The pedestrian protection crash impact sensor in the Mercedes CLA C117 model works with the vehicle's measurement systems, analyzing signals related to sudden contact with an obstacle. Based on this data, the vehicle's control units can activate appropriate protective procedures, limiting the consequences of the event for vulnerable road users.

The precise operating characteristics of this element are crucial for the correct interpretation of events by the vehicle's electronics. Using the correct sensor from the Lidar and radar sensors group allows for maintaining compliance with the manufacturer's factory algorithms and avoiding diagnostic errors.

Compatibility and integration with vehicle electronics

The offered element has been designed to work with the electrical architecture and communication buses used in the Mercedes CLA C117 generation. This means:

• proper identification by body control units and safety systems,
• compatibility with factory calibration maps,
• minimization of the risk of errors appearing in the fault memory.

Thanks to this, the sensor can be used both for post-accident repairs and for replacing a component damaged during operation, without the need to use replacement solutions with uncertain parameters.

Benefits of choosing an original used sensor

Choosing an original, used pedestrian protection crash impact sensor is a sensible solution for users who want to combine cost control with maintaining factory functionality. This type of component:

• maintains the consistency of the safety system with other vehicle modules,
• reduces the risk of problems with adaptation and coding,
• allows for economical repair while maintaining a high level of safety.

If you want to analyze more broadly when choosing used electronics makes sense, it is worth reading the guide: the second life of automotive electronics – when it pays to opt for used modules and sensors.

Application in the repair and diagnostic process

During post-accident repairs in the Mercedes CLA C117, the pedestrian protection crash impact sensor is one of the elements that must be verified for proper operation. In workshop practice, it is important to:

• check the sensor's communication with the appropriate control units,
• verify the absence of errors in the system after installation,
• perform functional tests in accordance with the manufacturer's procedures.

Professional installation and diagnostics using appropriate service software allow for restoring the full efficiency of the pedestrian protection system and maintaining a high level of the vehicle's active safety.

Summary

Mercedes CLA C117 Pedestrian Protection Air Unit Crash Impact Sensor is a precise safety system element responsible for the vehicle's correct reaction in collision situations involving pedestrians. Its original origin and fitment to Mercedes electronics make it a technically safe and predictable solution in operation. If you are planning a comprehensive repair of detection and assistance systems, also check other elements in the category proven methods for selecting used electronics and sensors in a car to choose components in an informed manner and in accordance with service recommendations.