Volvo V40 Air Unit Module Crash Impact Sensor 1.6 Diesel D4162T 31406537

Volvo V40 Air Unit Module Crash Impact Sensor 1.6 Diesel D4162T is a specialized safety system component designed to work with the Diesel powertrain. It is responsible for the precise detection of deceleration forces and transmitting signals to the airbag system, which is crucial for passenger protection. This OEM solution ensures compatibility with the factory electronics architecture of the Volvo V40.

Specifications and technical data

• SKU: 31406537
• Mark: Volvo
• Condition: Used
• OEM Part Number: 31406537
• Substitutable numbers: 140500004928, 31406537
• Fuel type: Diesel
• Category: Other Interior Parts & Accessories

Purpose and function of the crash impact sensor module

The crash impact sensor module in the Volvo V40 with the 1.6 Diesel D4162T engine works in conjunction with the central passive safety system controller. Its task is to analyze signals from acceleration sensors and transmit information about a collision to the airbag control unit, enabling the rapid deployment of airbags and seatbelt tensioners. Thanks to its factory design, the module is matched to the characteristics of the Volvo V40 body and the operating parameters of the diesel unit, which promotes stable and predictable operation of the entire safety system.

Compatibility and integration with Volvo electronics

The offered component comes from the Volvo line, which means it maintains the original operating logic and full integration with the vehicle's communication bus. The module works with the factory airbag control unit software, allowing it to operate in accordance with the manufacturer's specifications after correct installation and potential diagnostic adaptation. In practice, this means:

• maintaining the safety system activation thresholds specified by the manufacturer,
• proper communication with other control units in the vehicle,
• consistency with the equipment configuration of a specific Volvo V40 version.

Characteristics of the used component

The crash impact sensor module is a secondary market component, which allows for reduced repair costs while maintaining the factory design. A used OEM component is often chosen as a reasonable alternative to replacements of unknown origin, especially for parts responsible for safety. Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and perform computer diagnostics after installation to ensure that the system does not report errors and that all safety functions are working correctly.

Why choose an original safety module

For components responsible for passenger protection, it is crucial to maintain the factory operating logic of the system. The original crash impact sensor module for the Volvo V40 was designed for a specific model, body type, and Diesel engine configuration, which minimizes the risk of system malfunction. Choosing an original component from the secondary market allows you to combine economic benefits with the design intended by the vehicle manufacturer, which is particularly important for post-collision repairs or when replacing damaged airbag system components. If you are planning a comprehensive repair or upgrade of the safety systems in your Volvo and need other parts from the same group, such as additional control modules, crash sensors, or airbag installation components, check out the available parts in the Other Volvo category. For a comparison of solutions used in sports designs of other brands and a better understanding of the differences in powertrain construction and accompanying systems, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the specifics of powertrains and accompanying components in high-performance vehicles.