Description
Bosch Throttle Potentiometer for Citroën and Peugeot Vehicles.
Product Overview
This Bosch accelerator pedal potentiometer (throttle position sensor) is designed for a range of Citroën and Peugeot vehicles. It converts pedal travel into an electrical signal for the engine control system, ensuring accurate throttle response and smooth driveability. Ideal for professional workshops and experienced DIYers who repair and maintain PSA-group vehicles.
Technical Information
- Manufacturer: Bosch
- Models: Citroën C2, Citroën C3, Citroën C3 Pluriel, Peugeot 1007, Peugeot 307
- Product Codes: 0280752251, 9646702180
- Additional Numbers: 1601K7 NFP
Function And Typical Symptoms
The throttle potentiometer (accelerator pedal sensor) measures the position of the accelerator pedal and sends a proportional voltage or digital signal to the engine control unit (ECU). When the sensor degrades or fails, common symptoms include uneven or delayed throttle response, engine hesitation, surging, increased idle irregularities, fault codes stored in the ECU, or activation of limp-home mode. Drivers may also see the engine management warning light on the dashboard.
Replacement Procedure
Basic replacement steps (overview for experienced mechanics):
- Disconnect the negative battery terminal before starting work to avoid electrical damage.
- Remove the necessary interior trim panels to access the accelerator pedal assembly.
- Unplug the electrical connector from the potentiometer and remove any retaining screws or clips.
- Replace the potentiometer with the new unit, ensuring correct alignment and secure fastening.
- Reconnect the electrical connector and reassemble trim panels.
- Restore battery connection and clear any stored fault codes; some vehicles may require a throttle/idle relearn procedure or ECU adaptation through diagnostic equipment.
Installation Recommendations
Always match the replacement part number to the part removed from the vehicle. Use proper tools and avoid forcing connectors or fasteners. After installation, clear fault codes and verify pedal signal with a diagnostic tool where possible. If symptoms persist, check wiring harness and ECU inputs for continuity and interference. For vehicles with advanced drive-by-wire systems, perform any required adaptation routines with appropriate diagnostic equipment.
Why This Part Fails
Common causes of potentiometer failure include internal wear from repeated use, contamination from moisture or dust ingress, corrosion of contacts, damaged connectors or wiring, and mechanical impact to the pedal assembly. Environmental exposure and high mileage increase the likelihood of degraded signal accuracy and intermittent faults.
Fitment Note
This unit is commonly fitted to the listed Citroën and Peugeot models. Confirm compatibility by comparing the part number on the existing component (0280752251 / 9646702180 / 1601K7) with the replacement to ensure correct fit and connector type.
