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.

This Bosch accelerator pedal (accelerator pedal position sensor) with product codes 1601Z0 / 1601EK is a direct-fit replacement for Citroën C5 III (X7) and Peugeot 407 models. Designed for professional workshops and experienced DIYers, the unit restores accurate throttle input to the engine control system and helps eliminate hesitation, erratic throttling or limp-home mode caused by a faulty pedal sensor. Commonly searched by part numbers 1601Z0 and 1601EK, this part is ideal when the original pedal shows electrical faults or mechanical wear.

Technical Information

• Manufacturer: Bosch
• Models: Citroën C5 III (X7); Peugeot 407
• Product Codes: 1601Z0, 1601EK
• Other Numbers: Not Available

Function And Symptoms

The accelerator pedal assembly houses an electronic position sensor (potentiometer or Hall-effect sensor) that communicates pedal position to the engine control unit (ECU). When the sensor degrades or the electrical connection fails, symptoms can include inconsistent throttle response, delayed acceleration, sudden surges, illuminated engine management light or the vehicle entering reduced-power (limp) mode. These faults are often logged as accelerator pedal position or throttle-related fault codes.

Installation Recommendation

Replacement is straightforward for a trained mechanic or competent DIYer with basic tools. Recommended steps:

• Disconnect the negative battery terminal before starting work to avoid accidental short circuits.
• Remove lower trim panels or footwell covers to access the pedal assembly.
• Unplug the electrical connector and remove the retaining bolts that secure the pedal to the bulkhead.
• Fit the new pedal, tighten fasteners securely, reconnect the wiring harness and reinstall trim.
• After installation, clear stored fault codes and, if required by the vehicle, perform throttle adaptation/relearn using dealer or aftermarket diagnostic equipment.

Inspect the harness and connector for corrosion or damaged pins when replacing the pedal. Proper seating of the connector and clean contacts are essential for reliable operation.

Why This Part Fails

Electronic accelerator pedals typically fail due to long-term wear of the internal sensor, contamination (moisture or dust ingress), corrosion at the electrical connector, or mechanical damage from foot impact. High mileage and vehicle age increase the likelihood of sensor drift or intermittent signals, which translates to the common symptoms described above.

Notes For Buyers

If you often search by part number, use 1601Z0 or 1601EK to find this exact Bosch unit. Suitable for garages and DIY repairs where restoring precise throttle control and eliminating driveability issues is required.

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.