The Bosch electronic throttle pedal is a direct replacement part designed for drive-by-wire systems used on Citroën and Peugeot models. It translates driver input into an electrical signal that the engine control unit (ECU) or throttle control module uses to regulate engine power. Built with an integrated position sensor (potentiometer / hall sensor array), this pedal assembly provides a precise and repeatable signal for smooth throttle response and improved drivability.

Function And Benefits

This assembly measures the pedal position and sends an electrical signal to the vehicle’s ECU, eliminating the mechanical linkage between the pedal and throttle body. Benefits include faster response, easier integration with traction and stability control systems, and more accurate idle and cruise control management. Replacing a worn or faulty pedal restores correct throttle mapping and prevents limp-home modes caused by erratic or missing signals.

Fitment & Compatibility

Primary Fitment: Citroën C4 I (First Generation). The unit carries Bosch and Stellantis cross-reference numbers and is commonly used on vehicles from the Citroën/Peugeot family that share the same pedal part number. Always check the part numbers listed below when searching for compatibility or ordering.

Technical Information

• Manufacturer: Bosch / Stellantis (Citroën / Peugeot)
• Model: Citroën C4 I (First Generation)
• Product Codes: 0280755120
• Other Numbers: 9684378880, 1601Z2, 1601CQ, 1601.CQ, 1601.Z2, 280755120

Replacement Procedure

• Disconnect the battery before beginning work to avoid electrical damage.
• Remove any lower dash trim or footwell covers to access the pedal assembly.
• Unplug the electrical connector and inspect the plug and wiring for corrosion or damage.
• Remove the mounting bolts securing the pedal to the bracket and take out the old unit.
• Install the new pedal, torque bolts to the manufacturer’s specification, and reconnect the electrical connector.
• Reconnect the battery and perform throttle adaptation / relearn procedure using a diagnostic tool as required by the vehicle (clear related fault codes and confirm proper signal values).

Mounting Recommendations

Always follow the vehicle manufacturer’s service manual for removal and installation procedures. Ensure connectors seat fully and locking tabs are engaged. Inspect and, if necessary, repair damaged wiring or corroded terminals before completing installation. After replacement, perform a diagnostic scan, clear any stored throttle position faults and run the throttle learning procedure to restore normal drive-by-wire operation.

Most Common Failure Reasons

Electronic throttle pedals typically fail due to wear of the internal sensing elements, contamination (dirt, moisture), connector corrosion, or intermittent wiring faults. Symptoms of a failing pedal include inconsistent throttle response, hesitation, sudden loss of throttle signal, illuminated engine or throttle warning lights, or the vehicle entering limp-home mode. Mechanical damage from impact or improper handling during service can also cause failure.

Practical Notes For Mechanics And DIYers

• These parts are often searched by product number — use the codes above when sourcing replacements.
• Inspect the wiring harness and connector for heat damage or pin corrosion before fitting a new pedal to avoid repeated failures.
• Whenever possible, perform post-installation checks with a diagnostic scanner to verify pedal position voltage/signal at rest and during travel.
• If the vehicle shows persistent faults after replacement, check related modules and wiring for shorts or open circuits.

High-quality Bosch throttle pedal assembly (part number 0280755164) compatible with selected Citroën, Peugeot and DS models. This accelerator pedal module integrates the electronic throttle position sensing element (potentiometer/accelerator position sensor) with the mechanical pedal support to ensure precise throttle response, reliability and easy replacement. Ideal for professional mechanics and experienced DIY enthusiasts looking for a direct-fit replacement often searched by part number.

Function And Application

The accelerator pedal assembly measures pedal travel and converts it into an electrical signal for the engine management system. Modern drive-by-wire systems rely on a precise, repeatable signal from the pedal sensor; a faulty pedal can trigger limp-home mode, throttle hesitation or error codes. This unit is manufactured by Bosch for Stellantis platforms and is commonly fitted to models from Citroën, Peugeot and DS.

Technical Information

• Manufacturer: Bosch (for Stellantis)
• Model: Citroën C4; Citroën C4 II; DS4; Peugeot 308
• Product Codes: 0280755164; 9671840280; 1601CQ
• Other Numbers: 1601.CQ; 280755164

How It Is Replaced

1. Disconnect the negative terminal of the battery and wait a few minutes to ensure systems are powered down.
2. Remove the lower dashboard trim or footwell cover to access the pedal assembly.
3. Unplug the electrical connector from the pedal module (handle clips carefully to avoid damage).
4. Unscrew the pedal mounting bolts and remove the old assembly.
5. Fit the new pedal assembly, tighten mounting bolts to the manufacturer torque specification and reconnect the electrical connector.
6. Reconnect the battery, clear any fault codes and perform throttle/pedal adaptation using a diagnostic tool if required.
7. Verify correct operation with engine running and test drive to confirm throttle response and absence of warning lights.

Installation Recommendations

• Always disconnect the battery before starting work to avoid electrical damage and ensure safety.
• Inspect the connector and wiring harness for corrosion or damage; repair or replace wiring as necessary to prevent intermittent faults.
• Avoid pulling on wires — release connector latches and use appropriate tools if needed.
• Follow the vehicle manufacturer’s torque settings for pedal mounting bolts.
• After fitting, perform an accelerator pedal adaptation or throttle relearn with an appropriate diagnostic tool (DiagBox/Lexia/PP2000 recommended for Stellantis vehicles) to ensure correct mapping and elimination of fault codes.

Why The Part Most Commonly Fails

Failures typically stem from electrical contact wear inside the sensor (potentiometer), moisture ingress, connector corrosion, mechanical wear or impact damage to the pedal assembly. Symptoms include erratic throttle response, check engine light illumination, reduced engine power (limp mode) or no throttle response. Regular inspection of the connector and harness after water ingress or cabin contamination can prevent premature failure.

Search And Compatibility Tips

This part is frequently sought by its product numbers: 0280755164, 9671840280 and 1601CQ. Use these codes when searching parts catalogues or ordering to increase the chance of finding the correct direct-fit unit for Citroën C4, Citroën C4 II, DS4 and Peugeot 308 models.

Additional Notes

Being an electronic component, handle the unit carefully to avoid static or mechanical damage. If you are unsure about performing the replacement or performing the adaptation procedure, seek assistance from a workshop with PSA diagnostic equipment to ensure correct installation and calibration.