Mercedes W209 A209 Convertible Steering Wheel Slip Ring Airbag Squib A2094640118

The Airbag Clock Spring (Slip Ring) for Mercedes CLK W209 / A209 Convertible Steering Wheel is a precision component from the Switches, Control Elements, and Ignition Switches group, responsible for reliable electrical connection between the airbag, steering wheel buttons, and the vehicle's wiring. A properly selected and functional module allows for the restoration of full functionality of the safety system and steering wheel controls in Convertible versions.

Specifications and technical data

• SKU: A2094640118
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2094640118
• Substitutable numbers: A2094640118, A 209 464 01 18, A2095403445, A 209 540 34 45
• Category: Switches & Controls

Function and Application in the Steering System

The presented airbag clock spring is designed for Mercedes CLK Convertible models (W209 / A209) and works with the steering wheel and the driver's airbag module. Its task is to ensure a stable, continuous electrical connection throughout the full range of steering wheel rotation, without the risk of wire abrasion.

This component integrates circuits responsible for, among others:

• power supply and trigger signal for the driver's airbag,
• signal transmission from steering wheel control buttons (if present),
• communication with other elements of the steering column control system.

Thanks to this, the safety and steering wheel control system maintains full functionality while preserving the original wiring architecture.

Compatibility and Reference Numbers

The clock spring has been designed as an original Mercedes part, with an assigned OEM number and a set of replacement numbers, which facilitates the selection of the correct component for a specific equipment version. The presence of reference numbers allows for precise matching to the specific steering column configuration in your vehicle, minimizing the risk of incompatibility with the wiring harness or airbag module.

Before purchasing, it is advisable to compare the markings on your old clock spring with the data in the product's technical specifications to confirm compatibility with your CLK Convertible version. This will ensure a smooth replacement process, and the part will work with existing switches and controllers.

Condition, Origin, and Benefits of Using a Used Part

The offered component comes from the original Mercedes parts group and is designated as used. This means it is a part from disassembly, retaining the factory construction, connectors, and mounting geometry, which translates to a secure fit with the steering column and other body elements.

Using an original, used airbag clock spring allows you to:

• maintain compatibility with the factory safety and control system,
• reduce repair costs compared to a new OE part,
• preserve the high quality of workmanship typical of the Mercedes brand.

You can find more information about the benefits of installing original, used components in cars of this brand in the article: Used Mercedes Parts – Original Parts from Disassembly.

Installation and Operational Aspects

The airbag clock spring in the steering column is a component whose installation requires adherence to safety procedures related to the SRS system (airbags). During replacement, ensure the correct neutral position of the clock spring is set relative to the wheels being straight, to avoid damage during maximum turns.

With a correctly performed installation, you will achieve:

• stable operation of the driver's airbag without errors in the control unit,
• proper functioning of the steering wheel buttons (if present),
• no unwanted warning messages on the instrument cluster.

By preserving the original design of connectors and mountings, the component integrates well into the existing steering column system, without the need for wiring modifications.

Expanding the Control System in Mercedes CLK

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