Mercedes CL S Class C215 W220 Steering Angle Sensor Slip Ring Squib A0004640318

Mercedes CL S Class C215 W220 Steering Angle Sensor Slip Ring Squib is a precision component from the Relays and switches group, responsible for the proper interaction between the steering system and safety and stability control systems. The offered component comes from a Mercedes vehicle and is designed for installation in the rear right part of the system, which allows for maintaining the factory logic of the vehicle's electronics.

Specifications and technical data

• SKU: A0004640318
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004640318
• Substitutable numbers: A0004640318, A 000 464 03 18, AS
• Location on the vehicle: Rear, Right
• Category: Relays & Contactors

Purpose and function in the vehicle system

The presented steering angle sensor with a slip ring and airbag connector is designed specifically for Mercedes CL and S-Class models of the C215 / W220 generation. It is responsible for the precise reading of the steering wheel position and transmitting signals to the controllers of systems such as electronic stability control, power steering systems, or safety modules. Its placement in the rear – right side area of the system allows for compliance with the factory electrical installation architecture.

Construction and integration with the installation

The element combines the function of a steering angle sensor and a slip ring in one housing, which enables safe signal routing to the airbag and other receivers located on the steering column. The integrated design reduces the number of connections, which promotes signal stability and reduces the risk of interference in the operation of the electronics.

As a part from the Relays and switches group, the sensor works with control modules, providing them with information about the current position of the steering wheel. Thanks to this, the power steering and stability systems can react in a predictable and repeatable manner, which translates into driving comfort and safety.

Benefits of using an original Mercedes component

Using an original component dedicated to the Mercedes CL / S-Class C215 W220 ensures:

• maintaining compliance with the factory operating characteristics of electronic systems,
• proper cooperation with the existing electrical harness and control modules,
• stable steering angle reading across the full operating range,
• reduction of the risk of safety system errors resulting from an incorrect signal.

The used element allows for an economical repair while maintaining the proper quality and fit for the specific vehicle platform, which is particularly important in the case of advanced electronic systems used in high-end models.

Selection, installation, and service application

Before installation, it is recommended to verify the compatibility of the part with the specific vehicle equipment version and steering system configuration. A properly selected steering angle sensor with a slip ring and airbag connector enables:

• restoring the correct operation of stability and power steering systems,
• eliminating error messages related to steering wheel position reading,
• maintaining the consistency of passive and active safety systems.

Due to the connection with the airbag system, the installation should be carried out in accordance with service procedures, observing safety rules when working with the SRS installation.

Expansion of the offer within the same group

If you are planning a comprehensive repair or upgrade of the control and signal systems area in your Mercedes and need other elements from the same group, such as additional switches, control modules, or signal elements, check out the available parts in the Mercedes Relays and switches category.

Technical support and expert knowledge

For users interested in deepening their knowledge about the differences in the construction and equipment of sports versions of cars, including solutions in the field of electronics, braking systems, and chassis, the following article may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?. It allows for a better understanding of how important a role precise electronic components play in modern vehicles.