OE Quality
60-Day Returns

Standard Ignition APS639 Accelerator Pedal Sensor
Reliable Accelerator Pedal Sensor for Mercedes-Benz Vehicles
The Standard Ignition APS639 accelerator pedal sensor is designed to provide precise throttle response for select Mercedes-Benz models. Engineered with a female oval plug-in connector and six male terminals, this sensor ensures accurate communication between the accelerator pedal and the vehicle's engine control unit.
- Connector Gender: Female
- Connector Quantity: 1
- Connector Shape: Oval
- Connector Type: Plug in
- Terminal Gender: Male
- Terminal Quantity: 6
Detailed Product Description
The APS639 accelerator pedal sensor from Standard Ignition is built to meet the specific requirements of Mercedes-Benz CLA45 AMG, CLA250, and GLA250 models. Featuring a single oval-shaped female connector with a plug-in design, it facilitates a secure and reliable electrical connection. The sensor includes six male terminals that transmit accurate pedal position signals to the vehicle’s engine management system, helping maintain optimal throttle control and engine performance.
Common Applications and Problem Resolution
- Restores proper throttle response in Mercedes-Benz CLA45 AMG, CLA250, and GLA250
- Resolves issues related to inconsistent acceleration or delayed throttle input
- Addresses sensor failure symptoms such as engine hesitation or reduced power
- Eliminates error codes related to accelerator pedal position sensor malfunctions
- Improves drivability by ensuring accurate pedal position feedback
Installation Notes and Tips
When installing the Standard Ignition APS639 accelerator pedal sensor, ensure the female oval plug-in connector is securely attached to the vehicle’s wiring harness. Verify that all six male terminals are properly aligned and seated to prevent signal interruptions. It is recommended to disconnect the vehicle battery before installation to avoid electrical shorts. Calibration or reset of the throttle position sensor may be required after installation, depending on the vehicle’s onboard diagnostics.
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The APS639 accelerator pedal sensor undergoes rigorous quality control to ensure durability and reliable performance in Mercedes-Benz CLA45 AMG, CLA250, and GLA250 models. Please refer to Standard Ignition’s warranty policy for specific coverage details.
| Brand | Standard Ignition |
| Part Number | APS639 |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Oval |
| Connector Type | Plug in |
| Terminal Gender | Male |
| Terminal Quantity | 6 |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2022 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2021 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2021 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2020 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2020 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2020 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2019 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2019 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2019 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2018 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2018 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2018 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2017 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2017 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2017 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2016 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2016 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2016 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2015 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2015 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
| 2015 | Mercedes-Benz | GLA250 | N/A | w/ Sport Package |
| 2014 | Mercedes-Benz | CLA250 | N/A | w/ Sport Package |
| 2014 | Mercedes-Benz | CLA45 AMG | N/A | w/ Sport Package |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.