Mercedes-Benz Vito W639 Steering Wheel Angle Sensor Ring Squib A6395420718

Mercedes-Benz Vito W639 Steering Angle Sensor is a precise control system component responsible for accurately reading the steering wheel's position and cooperating with the vehicle's safety systems. As part of the Switches, Control Elements, and Ignition Switches group, this sensor ensures proper communication between the steering column and the vehicle's electronics. A used, original component allows for a technically correct repair without interfering with the factory installation architecture.

Specifications and technical data

• SKU: A6395420718
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395420718
• Substitutable numbers: A6395420718, A 639 542 07 18, 0265005523, 0 265 005 523, EM
• Category: Switches & Controls

Function and Role of the Steering Angle Sensor in Vito W639

The steering angle sensor in the Mercedes-Benz Vito W639 is responsible for continuously measuring the steering wheel's position and transmitting this data to control units responsible for, among other things, maintaining driving stability. A properly functioning component enables:

• accurate interpretation of steering wheel movements by electronic systems,
• seamless cooperation with driver assistance systems,
• maintaining predictable vehicle behavior in emergency situations.

By preserving the factory signal characteristics, replacing it with an original sensor restores the correct operation of the control systems without the need for modifications to wiring harnesses or software.

Construction and Integration with the Control System

As an element from the Switches, Control Elements, and Ignition Switches group, the sensor is integrated with the steering column and works with the vehicle's electronic modules. The manufacturer-designed construction ensures:

• fit to the steering column geometry of the Vito W639,
• compatible electrical connectors,
• stable mounting that minimizes reading interference.

The original solution maintains the integrity of the entire control system, which is important for diagnostics and calibration after installation.

Benefits of Using an Original Used Part

Using a used, original steering angle sensor for the Mercedes-Benz Vito W639 offers a sensible compromise between cost and quality. Such a component:

• maintains the factory parameters of the steering system's operation,
• reduces the risk of signal discrepancies compared to low-quality aftermarket parts,
• allows for economical repair while maintaining a high level of safety.

For vehicles used intensively, typical for the commercial segment, choosing an original part from disassembly often translates to more stable electronic system performance in the long run.

Condition, Compatibility, and Installation Aspects

The offered sensor is a used part intended for installation in the Mercedes-Benz Vito W639 model, following the manufacturer's service procedures. Before installation, it is recommended to:

• verify compatibility with your specific vehicle using the OEM part number and interchangeable numbers (available in the specifications),
• check the condition of the connectors and wiring harness in the car,
• perform sensor adaptation or calibration according to service recommendations.

This approach minimizes the risk of errors in the control system and restores the full functionality of systems related to the steering column.

Expanding the Control System and Knowledge of Used Parts

If you are planning a comprehensive repair or upgrade of the control and steering column area in your Mercedes and need other parts from the same group, such as combination switches, control elements, or ignition switch components, check the available parts in the Mercedes Switches, Control Elements, and Ignition Switches category.

When selecting used components for a Mercedes, it is advisable to rely on verified information regarding original parts from disassembly – this is described in more detail in the article Used Parts for Mercedes – Original Components from Disassembly, which helps in consciously planning repairs while maintaining the quality characteristic of this brand.