Description
Throttle pedal for Citroën and Peugeot vehicles. From Citroën C8 2008, also suitable for Peugeot 807.
This HELLA electronic accelerator pedal assembly (part numbers 1400838680 / 1601S6) is a direct-fit replacement designed for drive-by-wire throttle systems on compatible Citroën and Peugeot models. The unit integrates a position sensing element (potentiometer/accelerator position sensor) that converts pedal travel into an electrical signal for the engine control system. Ideal For Professional Mechanics And DIY Enthusiasts Looking For A Reliable OEM-Quality Replacement, Especially When Searching By Part Number (1400838680, 1601S6).
Technical Information
- Manufacturer: HELLA
- Model: Citroën C8 (2008); Peugeot 807
- Product Codes: 1400838680, 1601S6
- Additional Numbers: NFP
Compatibility And Fitment
Primary fitment is Citroën C8 (2008). Compatible With Peugeot 807 Models Sharing The Same Pedal Assembly And Electrical Connector. Before Installation Verify Mechanical Fit And Connector Pinout Against The Vehicle Unit You Are Replacing.
Function And Benefits
The Pedal Assembly Serves As The Driver Input For The Throttle System, Translating Foot Movement Into An Electronic Signal For The Engine Control Unit. Benefits Include Precise Throttle Response, Reduced Mechanical Linkage Wear Compared To Cable Systems, And Simple Bolt-On Replacement When Matching Part Numbers.
Common Faults And Causes
- Internal Sensor Wear Or Potentiometer Degradation Leading To Erratic Throttle Signal.
- Electrical Connector Corrosion Or Damaged Wiring Causing Intermittent Operation Or Fault Codes.
- Moisture Or Contamination Ingress Affecting Sensor Electronics.
- Mechanical Wear Of Pedal Pivot Or Return Spring Resulting In Sticking Or Poor Return.
Replacement Guide
Basic Replacement Steps (General Guidance):
- Disconnect Battery Negative Terminal Before Work To Prevent Unwanted Electrical Events.
- Remove Lower Dash Trim Or Footwell Cover To Access Pedal Assembly.
- Unplug Electrical Connector And Remove Mounting Bolts Securing The Pedal Assembly.
- Fit New Pedal Assembly, Hand-Tighten Then Torque Bolts To Manufacturer Specifications.
- Reconnect Electrical Connector And Battery, Then Clear Any Related Fault Codes With A Diagnostic Tool.
Installation Recommendations
- Ensure Connector Pins Are Clean And Undamaged Before Reconnection.
- Use Correct Torque Values For Mounting Hardware To Avoid Distortion Of The Assembly.
- Inspect Wiring Loom For Signs Of Chafing Or Previous Repair; Repair Wiring Faults Before Installing New Pedal.
- After Installation, Perform Throttle Adaptation/Calibration If Required By The Vehicle’s ECU Using A Diagnostic Tool.
- Avoid Spilling Liquids On The Pedal Assembly; Moisture Is A Frequent Cause Of Electronic Failure.
Why This Part Fails Most Often
Failures Are Usually Driven By Electrical And Environmental Factors: Internal Sensor Wear From Long-Term Use, Contamination Or Moisture Ingress, Corroded Connectors, And Damaged Wiring. Mechanical Issues Such As Worn Pivot Points Or Broken Return Springs May Also Cause Malfunction.
When Replacing, Match The Part Numbers 1400838680 Or 1601S6 To Ensure Correct Fitment And Functionality.
