Mercedes R171 Steering Column Indicator Wiper Stalk Switch Squib A1715400945

Mercedes R171 Steering Column Indicator Wiper Stalk Switch Squib is an original control system component that combines the functions of turn signals, wipers, and other steering column signals. Thanks to its factory design, it ensures precise operation of the stalks and consistency with other steering system components, which translates into driving comfort and safety.

Specifications and technical data

• SKU: A1715400945
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1715400945
• Substitutable numbers: A1715400945, A 171 540 09 45
• Category: Steering Columns

Purpose and function in the steering system

The described combination switch is a component mounted on the Steering column in Mercedes R171 series models. It is responsible for operating the vehicle's basic functional features from the steering wheel, such as:

• controlling turn signals,
• operating wipers and washers,
• transmitting signals from the stalks to the vehicle's electrical system.

By integrating these into a single unit, it reduces the number of separate components on the column, which simplifies the design and facilitates maintenance.

Advantages of using an original Mercedes component

Using an original combination switch in a Mercedes steering system ensures:

• full compatibility with the factory wiring harness and control modules,
• proper cooperation with the vehicle's electronics, including safety systems,
• appropriate operating characteristics of the stalks (travel, resistance, switching positions),
• consistent appearance and interior ergonomics in line with the manufacturer's standards.

This solution is particularly recommended for post-collision repairs, replacing a damaged steering column, or restoring full functionality to the control system.

Condition, installation, and service application

The item belongs to the Steering columns category and is intended for direct installation in the appropriate versions of the Mercedes R171. In practice, this means it can be used for:

• steering system repairs following mechanical damage,
• fixing malfunctions related to improper operation of turn signals or wipers,
• restoring proper communication between the stalks and the vehicle's electrical system.

To ensure safety and reliability, installation by an experienced service center is recommended, following the manufacturer's procedures for working on the steering column and related components.

Technical support and knowledge about the steering system

If you want to better understand how a complete steering system works and what symptoms may indicate the need to replace steering column components, check out the advice in the article: Steering system and power steering – how it works and what fails?. This is a practical addition to your knowledge when planning repairs or diagnostics.

Expanding repairs within the steering column area

If you are planning a comprehensive repair or upgrade of the steering column area in your Mercedes and need other components from the same group, such as additional modules, housings, or complete column assemblies, check out the available parts in the Mercedes steering columns category.

To learn more about the benefits of choosing original components for this manufacturer, it is also worth reading the material: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?. This will allow you to consciously select steering system components in terms of durability and service cost-effectiveness.