Accelerator Pedal Mercedes ML W166 Throttle Pedal Gas A1663000204

Visual condition of the part

The product shows signs of use visible in the photos.

Accelerator Pedal Mercedes ML W166 Throttle Pedal Gas is an original, used component from the Pedals, pedal pads and footrests group, designed for precise control of the electronic throttle in Mercedes vehicles. It ensures stable, repeatable powertrain operation and consistency with factory engine performance characteristics, which is important for both daily use and more dynamic driving.

Specifications and technical data

• SKU: A1663000204
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1663000204
• Substitutable numbers: A1663000204, A 166 300 02 04
• Category: Pedal Assemblies, Pads & Parts

Technical characteristics and vehicle function

The presented accelerator pedal is a component of the electronic acceleration control system that converts the driver's foot movement into a signal for the engine control unit. The applied design ensures:

• smooth mapping of pedal travel to engine response,
• stable operation throughout the full range of travel,
• consistency with factory Mercedes engine control maps.

As a result, the powertrain maintains predictable characteristics, and the throttle response remains in line with the vehicle manufacturer's specifications.

Compatibility and integration with the vehicle system

The original accelerator pedal intended for the Mercedes ML W166 generation is designed to work with the factory electrical installation and vehicle safety systems. Proper alignment with the car's electronics allows for maintaining:

• correct communication with the engine control module,
• integration with driver assistance systems,
• compliance with factory diagnostic procedures.

Such a match reduces the risk of controller errors and facilitates potential future diagnostics.

Benefits of using the original accelerator pedal

Using an original component from the Pedals, pedal pads and footrests group in a Mercedes ML W166 allows for maintaining the factory operating parameters of the powertrain. Key advantages include:

• secure mounting fit – compatibility with factory mounting points and interior geometry,
• maintenance of predictable throttle response,
• no need for mechanical adaptation or wiring modifications.

For the user, this means comfortable vehicle operation and preservation of the driving character typical of Mercedes ML W166 models.

Component condition and service application

The offered accelerator pedal is a used part, making it an attractive solution for service repairs where the priority is combining functionality with cost control. This type of component is particularly suitable in situations where:

• the original pedal in the vehicle has suffered mechanical or electrical damage,
• there are unstable throttle responses or errors related to pedal position,
• it is necessary to replace the component with one that meets factory specifications.

Choosing an original, used sub-assembly allows for maintaining the proper characteristics of the acceleration system without interfering with the vehicle's design.

Expansion of upgrades within the pedal zone

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

Substantive support and technical knowledge development

For drivers and mechanics interested in deepening their knowledge of modern powertrain construction and the impact of components on operating costs, an article comparing popular BMW diesel units may be useful – you can find it here: BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels. Reading it allows for a better understanding of the relationship between the selection of aftermarket parts and the durability of the entire powertrain.