Bumper Pressure Sensor Mercedes C118 W177 Front Crash Impact Sensor A1779054700

Bumper Pressure Sensor Mercedes C118 W177 Front Crash Impact Sensor is a specialized component mounted in the front part of the body, responsible for interacting with the pedestrian protection system in Mercedes vehicles. A used component from this group allows for a technically correct repair of the active safety system without the need for more expensive brand-new solutions. This is a practical solution for workshops and users who want to restore full system functionality after a collision or bumper component replacement.

Specifications and technical data

• SKU: A1779054700
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779054700
• Substitutable numbers: A1779054700, A 177 905 47 00
• Location on the vehicle: Front
• Category: Bumper Inserts & Covers

Function and role of the pedestrian protection impact sensor

The pedestrian protection impact sensor in C118 and W177 series models works with the body electronics, analyzing signals from the front impact zone. Its task is to transmit information about the nature of the impact, which enables the proper response of the pedestrian protection system and the diagnosis of any damage after a collision.

Its placement in the front bumper area makes this element crucial for any work related to replacing inserts, covers, or repairing the bumper structure. A correctly selected sensor allows maintaining compliance with the vehicle's factory configuration and reduces the risk of errors in safety systems.

Purpose and integration with the body

The presented sensor is part of a group of elements referred to as Bumper inserts and covers, which means it has been designed to work with the front bumper structure in Mercedes vehicles. It is mounted in a zone exposed to impact forces, which is why its correct seating and orientation have a direct impact on the system's operation.

In service practice, this type of sensor is used, among others, for:

• repairs after collisions involving the front part of the body,
• replacement or reconstruction of the bumper and its inserts,
• diagnosing pedestrian protection system errors related to the front zone of the vehicle.

Characteristics of the used component

As a used item, the pedestrian protection impact sensor is an economical alternative to new parts, while maintaining proper functionality in the safety system. Such components are particularly valued in workshops specializing in post-accident repairs, where both technical correctness and cost optimization are important.

By choosing this sensor, you gain:

• the ability to restore the operation of the pedestrian protection system without interfering with the vehicle's structure,
• a component intended for installation in the front body zone, in accordance with the factory design,
• a solution tailored to the specifics of Mercedes models from the C118 / W177 family.

Importance for safety and diagnostics

A properly functioning pedestrian protection impact sensor has a direct impact on the operation of active safety systems, as well as on the absence of errors in the body control unit memory. Its replacement is recommended after mechanical damage to the bumper or after noting irregularities in computer diagnostics.

In the context of modern solutions used by Mercedes, the proper selection and installation of this element allows maintaining the consistency of the entire safety system, which is important both from the user's point of view and the service responsible for repairing the vehicle.

If you are planning a comprehensive repair or modernization of the front bumper zone in your Mercedes and need other elements from the same group, such as inserts, covers, or additional brackets, check the available parts in the Mercedes bumper inserts and covers category.

For a better understanding of the design philosophy and safety solutions used by the manufacturer, an article describing the development of flagship models may be helpful – you can find it here: Evolution of the Mercedes S-Class: from W140 to W222 – innovations and Mercedes parts.