Mercedes W447 Impact Crash Sensor Lower Left Right N/O/S Unit A4479050013

Mercedes W447 Airbag Impact Sensor Left Right is a precise component of the passive safety system, responsible for detecting overloads in the vehicle's side zone. A properly selected sensor works with the airbag control module, ensuring the correct airbag system response in critical road situations. This solution is dedicated to Mercedes W447 series vehicles, allowing for technically correct repair after a collision or replacement of a worn-out part.

Specifications and technical data

• SKU: A4479050013
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4479050013
• Substitutable numbers: A4479050013, A 447 905 00 13
• Location on the vehicle: Right, Left
• Category: Camera, Monitor & Sensor Kits

Purpose and Function of the Impact Sensor

The airbag impact sensor in Mercedes W447 models plays a key role in monitoring the accelerations and overloads acting on the body in the side area. Based on the signal from this component, the airbag controller decides to initiate the inflation of airbags and seatbelt pretensioners. A properly functioning sensor is essential for the passive safety system to maintain consistent operation with the factory control logic.

Vehicle Placement and Configuration

The presented sensor is adapted for installation on both the right and left sides of the vehicle, which facilitates component selection during post-accident repairs. This solution allows for flexible use of the component depending on body damage and the specific car configuration. Clear vehicle placement is important for correct signal interpretation by the airbag controller.

Compatibility and OEM Standard

The sensor is designed as a component compliant with the factory requirements of the Mercedes brand, which translates to proper measurement characteristics and electrical compatibility with the vehicle's wiring. Using a component from the Cameras, Monitoring, and Sensor Kits group with parameters specified by the manufacturer minimizes the risk of airbag system errors, dashboard warning messages, and diagnostic problems.

Product Performance Characteristics

The offered airbag impact sensor is a used part, which in practice means the possibility of economical repair while maintaining compliance with factory specifications. A properly selected component allows for:

• restoring the correct operation of the airbag system after a collision,
• eliminating errors related to incorrect overload readings,
• maintaining parameter consistency with other sensors in the vehicle.

This makes it possible to technically restore the functionality of the safety system without the need for aftermarket parts with unverified parameters.

Application in Repair and Diagnostics

Replacing the airbag impact sensor is a typical step in vehicle repair after the airbag system has deployed or if irregularities are detected during computer diagnostics. Installing a component that meets manufacturer requirements facilitates service work, reduces the need for additional adaptation, and allows for correct clearing of errors in the airbag controller. Combined with the appropriate installation procedure and electrical system check, this is an important step in restoring the full functionality of the safety system.

If you are planning a comprehensive repair or upgrade of the passive safety zone in your Mercedes and need other components from the same group, such as impact sensors, detection modules, or surrounding monitoring elements, check the available parts in the Mercedes Cameras, Monitoring, and Sensor Kits category.

To compare manufacturers' approaches to economical operation and the selection of original components, it is worth familiarizing yourself with practical tips on optimizing service costs – a detailed discussion can be found in the article Economical Ford Operation – Where to Find the Biggest Savings on Mechanical and Body Repairs.