Mercedes CLK W209 Steering Angle Sensor Slip Ring Air Module Squib A2095403045

Mercedes CLK W209 Steering Angle Sensor Slip Ring Air Module Squib is a precision steering system component responsible for the correct transmission of signals from the steering wheel to the vehicle's electronic systems. As part of the Switches, control elements and ignition locks group, it ensures stable cooperation with safety and comfort modules, such as ESP or power steering systems. The used OEM component allows for a technically correct replacement of a damaged slip ring and steering angle sensor without interfering with the factory installation architecture.

Specifications and technical data

• SKU: A2095403045
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2095403045
• Substitutable numbers: A2095403045, A 209 540 30 45
• Category: Switches & Controls

Function and role of the steering angle sensor in the Mercedes CLK W209

The steering angle sensor integrated with the slip ring is responsible for continuous monitoring of the steering wheel position and an uninterrupted electrical connection between the steering wheel and the steering column. This is a key element for:

• proper operation of electronic stability and traction control systems,
• correct operation of airbags within the steering wheel area,
• operation of steering wheel control buttons, if present in the vehicle's specific configuration.

By maintaining the factory geometry and signal characteristics, the steering angle sensor with slip ring allows for restoring the proper operation of electronics without the need for wiring modifications or additional component matching.

Construction and integration with the steering system

The element belongs to the Switches, control elements and ignition locks group, which means it works directly with the steering column and control modules in the vehicle. The sensor and slip ring assembly is mounted on the steering column, in the immediate vicinity of the steering wheel, which ensures:

• stable mounting and proper positioning relative to the axis of rotation,
• maintenance of the appropriate range of rotation without the risk of damaging the ribbon cable,
• consistency with the factory layout of connectors and electrical harnesses.

The used OEM component is particularly valued by workshops specializing in the Mercedes brand, as it enables the preservation of the original system operation logic without the need to adapt replacements with uncertain parameters.

Benefits of using an original control element

Using an original steering angle sensor with a slip ring in a Mercedes CLK W209 brings a number of practical service and operational benefits:

• Compatibility with vehicle electronics – compliance with factory control modules is maintained, which facilitates adaptation and calibration after installation.
• Stable operating parameters – proper steering angle reading minimizes the risk of errors in safety systems and prevents fault messages from appearing on the dashboard.
• Reduced repair time – installation of an OEM element usually does not require additional modifications, which shortens the vehicle's downtime in the workshop.

For users and workshops, this means a more predictable repair process and greater confidence that the steering system will operate according to the manufacturer's specifications.

Condition, verification, and application in service practice

The offered element is in used condition, which in workshop practice often represents a reasonable compromise between repair costs and maintaining original build quality. Before installation, a standard diagnostic procedure is recommended, including checking for errors in the controllers and, if necessary, calibrating the steering angle sensor using an appropriate diagnostic tester.

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

Safety of related systems and service knowledge

A functional steering angle sensor and slip ring have a direct impact on the operation of safety systems, including electronic stability control and components responsible for driver protection. In case of doubts regarding the assessment of the condition of used components in critical vehicle systems, it is worth expanding your service knowledge by using reliable sources. Practical tips on the safe selection of used elements in sensitive systems can be found in the article Second-hand braking system: how to safely choose discs, calipers, and ABS?, which discusses inspection procedures and best practices when purchasing parts from the secondary market.