Mercedes W639 Cruise Control Switch Stalk Voice Control System A6395450824

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W639 Cruise Control Switch Stalk Voice Control System is an original control component designed to operate the speed maintenance function in Mercedes vehicles. It allows for precise cruise control management directly from the steering column, improving ergonomics and driving comfort on longer journeys. This is a practical solution for drivers who expect consistent performance with the vehicle's factory electronic system.

Specifications and technical data

• SKU: A6395450824
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395450824
• Substitutable numbers: A6395450824, A 639 545 08 24, A2035450044, A 203 545 00 44
• Category: Switches & Controls

Purpose and function of the cruise control stalk

The cruise control stalk switch is responsible for controlling the speed maintenance function in the car, eliminating the need to constantly press the accelerator pedal. This component is mounted on the steering column and works with the vehicle's factory electronic system, ensuring consistent operation with other control systems. This allows the driver to intuitively activate, deactivate, and adjust the set speed.

Design and integration with the control system

The cruise control stalk belongs to the Switches, control elements and ignition locks group, which means it is designed to work in the immediate vicinity of other steering column switches. The design provides for cooperation with the Mercedes vehicle's electrical system, maintaining the correct signal logic and communication with control modules. A properly profiled lever facilitates operation without taking hands off the steering wheel, which positively affects safety and convenience.

Benefits of using an original switch

Using an original cruise control stalk in a Mercedes W639 allows you to maintain the factory operating characteristics of the system. Key advantages include:

• Full compatibility with the factory cruise control system in Mercedes vehicles.
• Consistent operating ergonomics with other switches on the steering column.
• Stable cooperation with the vehicle's electronics, without the need for installation modifications.
• Possibility of restoring the correct operation of the cruise control after a failure of the previous component.

Thanks to the original design of the switch, the installation process is orderly, and the driver receives a predictable system response to every movement of the stalk.

Condition and use in vehicle service

The offered component comes from the group of used parts, which allows for an economical repair of the cruise control system while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial when servicing vehicles that are used intensively, where both functionality and reasonable repair costs are important. The Mercedes W639 Cruise Control Switch Stalk Voice Control System will work well both when replacing a damaged component and when restoring the full functionality of comfort equipment.

Selection by numbers and support for online purchases

When selecting a switch for a specific vehicle, it is crucial to pay attention to the manufacturer's markings and interchangeable numbers to ensure full compatibility with the electrical installation and vehicle equipment. Proper identification by numbers allows you to avoid problems with installation and cruise control operation. If you want to deepen your knowledge about the safe selection of components based on manufacturer markings, it is worth using the guide: buying parts online without risk and verifying compatibility by OEM numbers.

Related Mercedes control elements

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

Vehicle system safety and used parts

When working with systems responsible for driving comfort and safety, such as cruise control, it is important that other vehicle systems – in particular the braking system – are maintained in proper technical condition. When using used components, it is worth knowing the principles of their proper assessment. Practical tips in this regard can be found in the article: second-hand braking system – how to safely choose discs, calipers and ABS.