Mercedes W221 Steering Wheel Angle Slip Ring Indicator Wiper Stalk Switch

Mercedes W221 Steering Wheel Angle Slip Ring Indicator Wiper Stalk Switch is an advanced steering column control unit that combines the functions of a steering angle sensor, a clock spring, and the indicator and wiper stalks. This component from the Switches, control elements and ignition locks group is responsible for precisely transmitting signals to the vehicle's electronic systems, ensuring the efficient operation of comfort and safety features. It is a practical service solution for Mercedes owners who expect a proven component at a reasonable price.

Specifications and technical data

• SKU: A1714640918-4
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1714640918
• Substitutable numbers: A1714640918, A 171 464 09 18
• Category: Switches & Controls

Function and application in the steering system

The described assembly combines several key functions in one housing: steering angle measurement, signal transmission via the clock spring, and operation of the indicators and wipers. The steering angle sensor works with the vehicle's electronics, supporting the operation of electronic stability control and other driver assistance systems. The clock spring ensures safe routing of wires within the steering column, and the stalk allows for convenient control of directional lighting and wiper operation. Thanks to the integrated design, the number of separate components is reduced, which facilitates diagnostics and the replacement of the entire module in case of failure. This solution is particularly beneficial for post-accident repairs or after a steering column control system failure.

Benefits of using an original Mercedes component

As a Mercedes brand product, the sensor, clock spring, and stalk assembly has been designed specifically for the geometry and electronics of the W221 model family. This means a proper fit for the steering column, the correct sensor operating characteristics, and seamless cooperation with factory control units. Using an original solution reduces the risk of communication errors in the vehicle network and minimizes the need for additional installation modifications. The item has an assigned OEM part number and interchangeable numbers, which facilitates the selection of the correct module based on service documentation or vehicle data. This is especially important when working with complex electronics, where reference compatibility has a direct impact on the correct operation of systems.

Characteristics of the used component

The offered module comes from the Switches, control elements and ignition locks category and is a used product, which represents a favorable compromise between cost and functionality. This type of part allows for an economical vehicle repair while maintaining the original design and operating parameters. In practice, it is a frequently chosen solution in the event of a steering angle sensor failure, clock spring damage, or problems with the indicator and wiper stalks. Before installation, a standard service procedure is recommended, including checking the connectors, correctly setting the sensor position relative to the steering wheel, and potential adaptation in the vehicle's diagnostic system, in accordance with the manufacturer's guidelines.

Selection and integration with vehicle electronics

When selecting this type of component, it is crucial to pay attention to compatibility with the specific equipment version and electronic systems used in a given vehicle. In practice, this means verifying the OEM part number and interchangeable numbers, as well as comparing the configuration with the removed module. A correctly selected sensor, clock spring, and stalk assembly allows for the maintenance of full functionality of the steering and comfort systems. For users who want to deepen their knowledge about the cost-effectiveness of using aftermarket components and the principles of selection by manufacturer markings, the following expert guide may be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. The information contained therein also applies to the general principles of working with OEM numbers and compatibility verification procedures.

Expanding repairs within the steering column

If you are planning a comprehensive repair or upgrade of the steering column area in your Mercedes and need other elements from the same group, such as additional switches, control modules, or ignition lock components, check the available parts in the Mercedes Switches, control elements and ignition locks category. Such an approach allows you to organize the entire group of components responsible for steering-level control in a single service stage, which reduces the risk of further vehicle downtime and facilitates the planning of future inspections.