Description
Throttle pedal potentiometer for Citroën C5 III and Peugeot 407.
This Bosch throttle pedal assembly is a direct-fit electronic accelerator potentiometer commonly used on Citroën and Peugeot models. It converts the driver’s accelerator input into an electrical signal for the engine control unit, ensuring precise throttle response and aiding fuel management. Ideal for professional workshops and DIY mechanics searching by part number (for example 0280755171 or 9672091080), this unit restores accurate pedal feedback and eliminates erratic throttle behavior caused by a failing sensor.
Technical Information
Manufacturer: Stellantis / Bosch
Model: Citroën C5 III (X7), Peugeot 407
Product Codes: 0280755171, 9672091080, 1601Z0, 1601EK
Other Numbers: 280755171
Compatibility
Suitable for vehicles fitted with the listed part numbers and the corresponding electronic throttle system. Primary applications include Citroën C5 III (X7) and Peugeot 407; always confirm that the part number matches the original component on the vehicle.
Function And Typical Symptoms
The pedal houses a potentiometer (throttle position sensor) that measures pedal travel and sends that information to the ECU. Common fault symptoms when the sensor degrades or fails include uneven idle, delayed or unresponsive acceleration, illumination of the engine or throttle warning light, reduced engine power (limp mode) and stored throttle-related fault codes.
How To Replace
1. Park the vehicle on a level surface, engage the parking brake and disconnect the negative battery terminal to avoid electrical shorts.
2. Remove lower dash or footwell trim panels as needed to access the pedal assembly.
3. Unplug the electrical connector from the pedal potentiometer (release the locking tab).
4. Unscrew the mounting fasteners securing the pedal assembly to the bracket and remove the unit.
5. Fit the new pedal assembly, tightening fasteners to the manufacturer’s torque specification (refer to workshop manual).
6. Reconnect the electrical connector and reassemble trim panels.
7. Reconnect the battery, clear any diagnostic trouble codes using a diagnostic tool and perform any required throttle adaptation or idle relearn procedure according to the vehicle’s service information.
Installation Recommendations
Use correct sized sockets and torque settings from the factory repair manual. Avoid contaminating the sensor or electrical connector with oil or grease. Ensure the connector locking tab is fully engaged and inspect the wiring harness for damage or corrosion before installation. After replacement, clear throttle-related fault codes and, if available, perform a throttle position sensor relearn with a diagnostic tool to ensure smooth engine response.
Why This Part Fails Most Often
Failure is typically caused by internal wear of the potentiometer contacts, contamination from moisture or dirt, connector corrosion, or mechanical damage to the pedal assembly. Excessive pedal play, harsh environmental conditions and long service life increase the likelihood of sensor degradation. Since the component is electronic, intermittent faults may appear before a complete failure.
Notes For Buyers
When searching, customers often use the part numbers 0280755171 or 9672091080. This description focuses on the most relevant technical details for professional fitment and DIY replacement. For safe and reliable repair, follow vehicle-specific service instructions and use appropriate diagnostic tools where required.
