Mercedes W140 W202 ASR OFF Switch Skid Control Button Switch A1408214651

Mercedes W140 W202 ASR OFF Switch Skid Control Button Switch is an original traction control system component designed for Mercedes vehicles equipped with the ASR system. It allows for quick, manual deactivation of the traction control, which is particularly useful in specific road conditions and during precise service maneuvers.

Specifications and technical data

• SKU: A1408214651
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1408214651
• Substitutable numbers: A1408214651, A 140 821 46 51
• Category: Pedal Assemblies, Pads & Parts

Purpose and function of the ASR OFF switch

The ASR OFF switch is responsible for controlling the deactivation function of the anti-slip system in selected Mercedes W140 and W202 class models. It is a console-mounted component that communicates with the vehicle's electronics, sending a signal to request the deactivation of the ASR system. This gives the driver the ability to consciously adjust the drive characteristics to current needs.

This solution is particularly useful in situations where reduced electronic intervention is required, for example, when starting on slippery surfaces, during diagnostic tests, or for specific workshop applications. Precise switch operation has a direct impact on proper interaction with the vehicle's control module.

Construction and integration with the vehicle interior

The offered switch belongs to the group of control elements mounted within the console and dashboard, functionally related to the Pedals, pedal pads and footrests system. The switch design is adapted to the factory mounting slots in the Mercedes W140 and W202, which allows for maintaining consistent aesthetics and interior ergonomics.

The original construction ensures proper fitment with the panel and the appropriate travel and resistance characteristics when pressed. This makes operating the switch intuitive, and the driver receives clear, mechanical feedback when the button is activated.

Benefits of using an original Mercedes component

Using an original ASR OFF switch to replace a worn or damaged component allows for restoring full functionality of the traction control system. Factory electrical and mechanical fitment minimizes the risk of compatibility issues, communication errors with electronics, and incorrect ASR indicator light operation.

The component from the Mercedes group is designed for long-term operation in demanding temperature and vibration conditions typical of a vehicle interior. This is the preferred solution for workshops specializing in the brand that expect predictable component behavior after installation.

Condition, verification, and service application

The switch is offered in used condition, which allows for an economical replacement of the element while maintaining the original manufacturer's specifications. This type of component is often chosen for traction control system repairs when it is necessary to restore factory functionality without interfering with the electrical harness or control modules.

Due to its connection to driving safety, installation by persons with experience in working with Mercedes vehicle electrical systems is recommended, while following procedures for disconnecting power and verifying correct operation after installation.

Expansion of upgrades within the control area

If you are planning a comprehensive repair or upgrade of the foot control and footrest area in your Mercedes and need other elements from the same group, such as pedal pads, support elements, or additional covers, check the available parts in the Mercedes Pedals, pedal pads and footrests category.

To better plan your vehicle's service strategy and optimally combine new and used components, it is worth checking out our expert guide on selecting mechanical sub-assemblies – especially in the context of repair cost-effectiveness. You will find practical tips in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which organizes the most important information on making informed choices regarding used parts.