Mercedes W204 Steering Column Cluster Indicator Wiper Stalk Squib A2129007017

Description

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W204 Steering Column Cluster Indicator Wiper Stalk Squib is an original component from the Steering columns group, designed for precise control of turn signals and other functions integrated at the steering wheel. This used OEM component ensures a factory-fit for the Mercedes steering system, maintaining consistency with the electrical installation and interior ergonomics.

Specifications and technical data

• SKU: A2129007017
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2129007017
• Substitutable numbers: A2129007017, A 212 900 70 17
• Category: Steering Columns

Purpose and function in the steering system

The combination switch in the Mercedes W204 model is responsible for convenient control of turn signals and other functions integrated at the steering column. Its placement directly at the steering wheel allows for quick access without taking your hands off the rim, which improves safety and driving comfort.

This element works with the vehicle’s electronics within the steering system, which is why its proper operation is crucial for correct maneuver signaling and ergonomic handling. Using an original switch minimizes the risk of compatibility issues and eliminates the need for installation modifications.

Application in the Steering columns category

The combination switch is an integral part of the assembly known as Steering columns in Mercedes vehicles. Replacement of this component is recommended in case of:

• lack of response or unstable operation of turn signals,
• mechanical damage to the stalk,
• wear of contacts causing intermittent operation,
• problems with the lever returning after completing a turn.

Choosing a switch from the same design group as the original steering column allows for maintaining the correct position of the stalk, appropriate lever travel, and predictable operation of all functions.

Benefits of using an original Mercedes component

Using an original combination switch in a Mercedes W204 brings a number of practical technical benefits:

• factory fit for the steering column and vehicle interior,
• preservation of original stalk ergonomics,
• consistency with the electrical system and control modules,
• reduction of the risk of communication errors in the vehicle network.

Thanks to this, replacing a damaged stalk with an original element from the same design family is a technically safe and predictable solution, which is important for both the user and the mechanic performing the service.

Condition and installation aspects

The offered combination switch comes from the used parts group, which allows for economical repair while maintaining the manufacturer’s original specifications. The element is intended for installation in place of the factory switch, using existing mounting points and electrical connectors in the steering column.

When replacing, it is recommended to follow the service procedures appropriate for the Mercedes steering system, including proper disconnection of the vehicle’s power supply and careful handling of the column cover elements. Thanks to the design consistent with the factory standard, the installation proceeds in an orderly and predictable manner.

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

Technical support and knowledge about the steering system

To better understand the role of the combination switch in the entire vehicle control system, it is worth reading the material describing the construction and operation of the steering and power steering system. A practical discussion of failure symptoms, diagnostic methods, and example elements, such as columns or steering wheels, can be found in the article Steering and power steering system – how does it work and what breaks?.

If you want to reduce the vehicle’s downtime in the workshop and want to better plan the replacement of elements related to the steering column, the guide on used parts logistics and warehouse availability may also be helpful: how a wide assortment in one warehouse really shortens your car’s downtime at the mechanic.