Product Overview

This accelerator pedal assembly with integrated potentiometer and cruise-control switch is a direct-fit solution for Citroën C5 and Peugeot 407 models. Manufactured by Bosch and cross-referenced with common OEM numbers, this unit restores accurate throttle position feedback to the engine control unit, ensures reliable cruise control operation and provides the kickdown signal for automatic transmissions. Ideal for professional mechanics and DIY enthusiasts looking for a precise replacement part to fix throttle response issues, cruise faults or intermittent accelerator problems.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C5, Peugeot 407
• Product Codes: 9650341780, 0280755012
• Other Numbers: F00C3E2429, 1601Q4, 1601Q0, 280755012

Function And Typical Symptoms

The pedal potentiometer measures the accelerator position and sends an electrical signal to the engine control unit (ECU). The integrated cruise-control switch enables/resumes cruise functions, while the kickdown contact signals the transmission to downshift under heavy throttle. Faulty units typically cause symptoms such as erratic idle, delayed or unresponsive throttle, illuminated check engine light, cruise control failure, sudden limp-home mode and transmission not shifting properly on kickdown.

Common Causes Of Failure

Failures are most often caused by wear of the potentiometer contacts, contamination or moisture ingress, connector corrosion, damaged wiring or mechanical wear of the pedal mechanism (including weakened return spring). Problems often start intermittently and progress to persistent faults or stored diagnostic trouble codes.

Installation Recommendations

1. Disconnect the negative battery terminal before starting work to avoid electrical faults.
2. Remove any necessary trim panels to access the pedal assembly and disconnect the electrical connector carefully to avoid damaging terminals.
3. Unscrew the mounting bolts and remove the old pedal assembly. Compare part numbers to ensure correct replacement.
4. Fit the new pedal assembly, secure mounting bolts to the manufacturer’s specification, and reconnect the electrical connector ensuring a firm, corrosion-free contact.
5. Reconnect the battery, clear fault codes and, if required, perform throttle/pedal adaptation or calibration using a diagnostic tool to ensure correct idle and driveability. Verify cruise control and kickdown functions during a controlled test drive.

Why This Part Fails Most Often

Mechanical wear and electrical degradation are the most common causes: constant movement abrades the potentiometer track, dust and moisture accelerate wear, and connector corrosion or wiring damage leads to intermittent signals. Vehicles used in humid or coastal environments, or those exposed to heavy contamination inside the cabin, are more prone to premature pedal sensor failure.

Compatibility Notes

Fits Citroën C5 and Peugeot 407 applications that use the listed part numbers. Cross-reference the product codes above with the vehicle’s existing part number to confirm fitment before installation.

This Bosch throttle pedal potentiometer assembly is designed for Citroën C5 and Peugeot 407 models with electronic throttle control. It combines the accelerator pedal position sensor (potentiometer) with an integrated cruise control/kickdown switch, delivering precise throttle input to the engine control unit (ECU). The part is commonly searched and identified by OEM numbers, so technicians and DIY enthusiasts often find this unit by entering the part codes listed below.

The unit restores smooth throttle response, accurate cruise control engagement and consistent kickdown behavior for automatic gearboxes. Typical fitment makes it a direct replacement for the vehicle’s original accelerator pedal module where the electrical connector and mounting points match.

Technical Information

• Manufacturer: Bosch
• Model: Citroën C5, Peugeot 407
• Product Codes: 1601Q4, 1601Q0
• Other Numbers: 0280755012, F00C3E2429, 9650341780, 280755012

Key Features

• Integrated potentiometer for precise accelerator position feedback to ECU.
• Built-in cruise control switch and kickdown function for automatic transmissions.
• Direct-fit design for mounting and connector compatibility with specified models.
• Improves throttle consistency, reduces hesitation and restores proper cruise operation.

Installation Recommendations

Suitable for professional mechanics and experienced DIYers. Follow safe workshop practices: disconnect the vehicle battery or disable the ignition system before starting to avoid accidental throttle activation.

1. Park the vehicle on a level surface, engage the parking brake and disconnect the negative battery terminal.
2. Remove lower dash or footwell trim to access the accelerator pedal assembly. Keep fasteners organized for reassembly.
3. Unplug the electrical connector(s) from the pedal module. Inspect the connector for corrosion or damaged pins.
4. Remove the mounting bolts securing the pedal assembly and withdraw the old unit.
5. Install the replacement pedal, secure mounting bolts to manufacturer torque values, and reconnect the electrical connector.
6. Reconnect the battery. Perform any required throttle/pedal calibration or adaptation procedure using a suitable diagnostic tool as specified by the vehicle service manual.

Why This Part Fails

Accelerator pedal potentiometers and modules typically fail due to electrical contact wear, contamination or mechanical fatigue. Common causes include:

• Wear of internal potentiometer tracks leading to intermittent or drifting voltage signals.
• Corrosion or water ingress to the connector or sensor electronics.
• Mechanical damage from impacts, excessive pedal force or broken return springs.
• Accumulated dirt and debris affecting sensor movement and contact surfaces.

Symptoms Of A Faulty Unit

• Unstable or delayed throttle response, hesitation under acceleration.
• Loss or unreliable operation of cruise control and kickdown functions.
• Check engine light related to throttle/pedal position or limp-home mode in drive-by-wire systems.

Replacing the pedal module with a known-good unit typically resolves the above symptoms. After replacement, ensure the pedal is calibrated if the vehicle manufacturer requires an adaptation step to restore full functionality.

Part numbers and correct model fitment are often used to find the exact replacement — please verify the listed product codes against your vehicle’s part reference before ordering.