Mercedes W251 Brake Pedal Assembly Automatic A2512900701

Mercedes W251 Brake Pedal Assembly Automatic is an original braking control system component designed for vehicles of this series. Thanks to its factory design, it ensures correct pedal operating geometry, precise pressure force transmission, and consistency with the factory braking system, which translates into predictable vehicle behavior and operating comfort.

Specifications and technical data

• SKU: RHD-A2512900701
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2512900701
• Substitutable numbers: A2512900701, A 251 290 07 01
• Gearbox type: Automatic
• Part type: Brake Pedal
• Category: Pedal Assemblies, Pads & Parts

Purpose and function in the vehicle

The presented brake pedal assembly has been designed specifically for Mercedes W251 class models equipped with an automatic transmission. The design takes into account the characteristics of the automatic gearbox, the proper position of the pedal relative to the driver's seat and steering column, as well as the correct transmission of pressure force to the braking system.

The component is responsible for:

• stable mounting of the pedal to the body and the firewall,
• controlled guidance of the pedal movement in a single path,
• transferring force from the driver's foot to the braking system,
• maintaining a repeatable brake engagement point.

Construction and technical fitment

The brake pedal assembly is a complete module mounted in the driver's footwell area. It includes the support body, the pedal arm, and components that interface with the braking system and interior equipment. The factory arm geometry ensures proper travel, linear operating characteristics, and ergonomic foot positioning during city and highway driving.

Original origin from the Mercedes group means:

• compliance with factory mounting points in the W251 body,
• correct positioning relative to the accelerator pedal and footrest,
• compatibility with the stock braking system and vehicle electronics.

Benefits of using the original brake pedal assembly

Using the original brake pedal assembly in a Mercedes W251 allows for maintaining the consistency of safety parameters intended by the manufacturer. Proper structural rigidity, appropriately selected leverage, and a repeatable brake engagement point facilitate the modulation of braking force, which is important both in daily use and in emergency situations.

The main advantages include:

• ergonomic pedal positioning relative to the seat and steering wheel,
• predictable vehicle response to foot pressure,
• preservation of the factory brake "feel" typical of Mercedes,
• easier diagnostics and service due to compliance with manufacturer documentation.

Condition, installation, and service application

The offered brake pedal assembly is a used component, sourced from dismantling, which is a reasonable choice for maintenance and post-accident repairs when maintaining the original design at optimal costs is crucial. The module is intended for installation in place of the factory assembly, using stock mounting points and hardware.

In practice, it will prove useful for, among other things:

• repairs after collisions in the driver's footwell area,
• mechanical damage to the pedal arm or body,
• problems with pedal operating geometry resulting from previous improper repairs.

Related components from the same group

If you are planning a comprehensive repair or upgrade of the footwell and brake control area in your Mercedes and need other elements from the same group, such as additional pedals, pedal pads, or driver footrests, check the available parts in the Mercedes pedals, pedal pads, and footrests category.

If you are considering broader use of dismantled parts in your vehicle fleet and want to better understand when used components are most cost-effective, an article describing the practical aspects of selecting and installing such elements may be helpful – you can find it here: Volkswagen – solidity and reliability. Why are used VW parts a reasonable choice?.