Mercedes R170 Accelerator Pedal A1703000004 A1703010320

Mercedes R170 Accelerator Pedal is an original powertrain control component designed to precisely transmit power demand signals to the engine control unit. This used OEM component ensures factory-grade mechanical and electrical fitment, as well as consistency with the performance characteristics of the powertrain in this generation of Mercedes models. It is the ideal solution for users who expect a proven, factory-compliant part rather than universal aftermarket replacements.

Specifications and technical data

• SKU: rhd-A1703000004
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1703000004
• Substitutable numbers: A1703000004, A 170 300 00 04, A1703010320, A 170 301 03 20
• Category: Other Car Parts & Accessories

Function and role of the accelerator pedal in the Mercedes R170

The accelerator pedal in the Mercedes R170 plays a key role in electronic engine management, responsible for converting the driver's foot movement into a signal for the fuel injection system. In this model, the "drive-by-wire" system eliminates the traditional throttle cable, which is why a properly functioning pedal has a direct impact on acceleration smoothness, throttle response, and driving safety. The original design ensures the correct resistance characteristics, stable resting position, and signal repeatability across the full range of travel.

Why choose an original used component

For control components such as the accelerator pedal, compliance with factory specifications is particularly important. A used OEM component for a Mercedes:

• maintains the original performance characteristics of the powertrain,
• minimizes the risk of engine control unit errors resulting from incorrect signals,
• ensures compatibility with the electrical wiring and body mounts,
• allows for cost-effective repair without compromising on manufacturer quality.

Unlike universal replacements, the original Mercedes accelerator pedal retains the correct mounting points, geometry, and sensor operating range, which facilitates installation and reduces vehicle downtime.

Application range and fitment

The presented accelerator pedal has been designed specifically for the construction of the Mercedes R170, ensuring it works seamlessly with the factory engine control unit and the wiring harness of this model. In practice, this means:

• no need for modifications to the installation or mounts,
• retention of the original pedal position in the driver's footwell,
• consistency with factory settings for driver assistance systems.

For workshops and individual users, this is a solution that allows for restoring proper throttle response after a failure or wear of the previous component, without interfering with the vehicle's design.

Condition, verification, and preparation for installation

This item comes from the secondary market, which allows for combining reasonable costs with the preservation of the original manufacturer's specifications. A used accelerator pedal is a particularly attractive solution for older generations of Mercedes, where the priority is to keep the vehicle in good working order while maintaining compliance with factory solutions. Before installation, it is recommended to perform a standard check of connectors and mounting points, as well as potential adaptation in the control unit, if required by the service procedure for the specific vehicle.

If you are planning a comprehensive repair or upgrade of the powertrain control zone in your Mercedes and need other components from the same group, such as position sensors, control modules, or additional pedal assembly parts, check the available parts in the Other Mercedes category.

Technical support and knowledge about used parts

Selecting the right accelerator pedal for a specific version of a Mercedes requires attention to compatibility with the vehicle's electronics and production year. In case of doubt, it is worth using guide materials regarding the differences between equipment versions and manufacturer specifications. For drivers interested in comparing the characteristics of sports car variants with standard versions, including the impact of powertrain control systems on driving feel, the article Audi RS vs other models – what is hidden under the hood and chassis? may be helpful, as it discusses, among other things, the importance of precise engine control and associated systems.

If you operate a Mercedes from years close to classic youngtimers and are planning a broader renovation using secondary market components, it is worth reading the guide The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 era, which describes practical scenarios for upgrading and maintaining premium brand cars based on used components.