Description
Accelerator pedal for Citroën C5 III and Peugeot 407
This accelerator (throttle) pedal assembly is a direct-fit replacement for Citroën and Peugeot models using the referenced OEM and Bosch numbers. It restores precise electronic throttle control and pedal position sensing, helping to eliminate limp-mode events, erratic idle or delayed throttle response. Frequently searched by part numbers 9685216080 and Bosch 0280755125, this unit is ideal for professional workshops and experienced DIY mechanics who need a reliable OE-referenced pedal assembly for maintenance or repair.
Technical Information
- Manufacturer: Stellantis / Bosch
- Model: Citroën C5 III, Peugeot 407
- Product Codes: 9685216080, 0280755125
- Additional Numbers: 1601Z0, 1601EK, 280755125
Function And Symptoms
The pedal assembly contains the position sensor that converts pedal travel into an electrical signal for the Engine Control Unit (ECU). A faulty pedal can produce symptoms such as Engine Management Light (MIL) illumination, reduced engine power or limp-home mode, intermittent throttle response, hesitation on acceleration, or inconsistent idle behavior. Replacement returns correct signal accuracy and pedal feel.
Installation Recommendations
- Disconnect Battery: Always isolate the battery negative terminal before starting to prevent accidental short circuits or ECU faults.
- Access And Removal: Remove lower dash trim or footwell cover to access the pedal assembly. Unplug the electrical connector carefully, then remove the mounting bolts securing the pedal bracket.
- Fitment: Install the new pedal in the correct orientation and secure mounting bolts to the manufacturer’s torque settings where available.
- Electrical Checks: Inspect wiring and connector for corrosion or damage. Clean connector contacts if necessary and ensure a snug connection.
- Adaptation And Testing: After installation, follow the vehicle manufacturer’s procedure for throttle adaptation or perform a basic system check with a diagnostic tool to confirm proper pedal position readings and ECU recognition.
- Final Check: Reconnect the battery, clear any stored fault codes, and perform a road test to confirm normal throttle response and absence of warning lights.
Common Reasons For Failure
- Wear Of Internal Sensor Elements: Potentiometer or Hall-effect sensor wear over time leads to erratic signals.
- Moisture And Contamination: Water ingress or contaminated connectors cause corrosion and poor electrical contact.
- Mechanical Damage: Impact, broken mounting points or excessive pedal play from long-term use.
- Wiring And Connector Issues: Chafed wiring, loose terminals or connector corrosion interrupt the signal to the ECU.
This part is commonly searched by its Bosch and OEM references—use the product codes to confirm compatibility with your vehicle model and year. Suitable for workshops and skilled DIY installers looking for a reliable replacement throttle pedal assembly for Citroën C5 III and Peugeot 407 applications.
