Mercedes SLK R172 Automatic Transmission Brake Pedal Assembly A1722902101

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes SLK R172 Automatic Transmission Brake Pedal Assembly is an original braking control system component designed for vehicles equipped with an automatic transmission. Thanks to its factory design, it ensures precise transfer of pressure force to the braking system and maintains proper driver ergonomics. This solution is dedicated to maintaining compliance with factory safety and comfort standards in the SLK R172 model.

Specifications and technical data

• SKU: rhd-A1722902101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1722900218
• Substitutable numbers: A1722902101, A 172 290 21 01, A1722901219, A 172 290 12 19, A1722900218, A 172 290 02 18, A1702900182, A 170 290 01 82
• Gearbox type: Automatic
• Category: Pedal Assemblies, Pads & Parts

Purpose and function in the vehicle system

The described brake pedal assembly is a component from the Pedals, pedal pads, and footrests group, responsible for controlling the hydraulic or electronically assisted braking system in the Mercedes SLK R172 generation. The design was developed specifically for versions with an automatic transmission, which means the geometry, operating travel, and performance characteristics are appropriately adapted for compatibility with an automatic gearbox.

The factory origin of the component allows for maintaining the correct pedal position relative to the seat and steering column, which translates into repeatable, predictable braking system response and a comfortable foot position for the driver during city and highway driving.

Compatibility with automatic transmission

The pedal assembly is designed to work with an automatic transmission, which in practice means the absence of a clutch pedal and an optimized width and shape of the brake pedal. This configuration facilitates intuitive vehicle operation, minimizes the risk of accidental pressure on the wrong element, and supports smooth braking in driving modes typical for automatic transmissions.

The appropriately selected pedal operating characteristics help in precise braking force modulation, which is particularly important when working with assistance systems such as electronic stability control or advanced ABS systems present in modern Mercedes designs.

Benefits of using the original brake pedal assembly

Using the original brake pedal assembly in a Mercedes SLK R172 brings a number of practical technical benefits:

• maintaining factory ergonomics and pedal position relative to the driver,
• consistency with the braking system design and vehicle safety systems,
• reducing the risk of play, incorrect travel, or inconsistent pedal operation,
• easier diagnostics and future service thanks to compliance with manufacturer documentation.

For users who value the consistency of technical solutions in their vehicle, choosing an original component from this group allows for maintaining predictable car behavior during braking and preserving comfortable, repeatable system performance.

Component condition and use in service practice

The offered brake pedal assembly is a used part, which in practice means the possibility of an economical repair or replacement of a worn component while maintaining the factory design. This type of component is particularly useful for:

• post-accident repairs within the driver's footwell area,
• removing the effects of mechanical damage to the pedal or its mounting,
• restoring full functionality of the brake control system after a mechanical failure.

Thanks to the preservation of original geometry and mounting points, installation proceeds in a manner similar to the factory process, which facilitates workshop work and reduces vehicle downtime.

Expanding the control zone modernization

If you are planning a comprehensive repair or modernization of the pedal control zone in your Mercedes and need other elements from the same group, such as pedal pads, additional footrests, or other pedal configurations, check the available parts in the Mercedes Pedals, pedal pads, and footrests category.

If you are also considering improving the ergonomics of your driving position by changing the seat, it is worth checking out the guide on selecting seats from dismantling – you will find practical tips in the article Interior metamorphosis: how branded seats from dismantling improve comfort and car value, which will help you consistently plan the modernization of your car's interior.