Description
Supply cable to the START-STOP capacitor for e‑HDi engines.
Product Description
This Supply Cable For The START‑STOP Capacitor (Part Number 9673518380) Is A Direct‑Fit Electrical Lead Designed For Citroën And Peugeot Vehicles Equipped With The e‑HDi Start‑Stop System. The Cable Carries High Transient Currents Between The Engine Bay Capacitor And The Vehicle Electrical Network, Helping To Stabilize Voltage During Engine Stop/Start Cycles And Reducing Stress On The Battery And Starter. Ideal For Professional Workshops And Experienced DIYers, This Part Frequently Appears In Search Queries Under Its OE Number 9673518380.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4, Citroën C4 II, Citroën C4 Picasso, Citroën C4 Picasso II, Peugeot 3008 I, Peugeot 308, Peugeot 308 T9, Peugeot 5008 I
- Product Codes: 9673518380
- Additional Numbers: N/A
Function And Benefits
The Cable Provides A Reliable Electrical Connection To The Start‑Stop Capacitor, Allowing The Capacitor To Smooth Voltage Spikes During Cranking And Engine Restart Events. Proper Function Reduces Wear On The Starter Motor And Improves System Reliability During Frequent Stop/Start Operation. Using An OE‑Specification Cable Ensures Correct Cross‑Section, Termination Quality And Resistance To Heat And Vibration.
Replacement Procedure
Replacement Is Straightforward For A Trained Technician Or Prepared DIYer. Typical Steps:
- Isolate The Vehicle Electrical System By Disconnecting The Negative Battery Terminal.
- Locate The Start‑Stop Capacitor Assembly In The Engine Bay And Note The Cable Routing And Fastening Points.
- Release Any Clips Or Brackets Holding The Cable, Disconnect The Terminal Connectors, And Remove The Old Cable.
- Fit The New Cable Following The Original Routing, Secure All Clips And Brackets, And Reconnect The Terminals.
- Reconnect The Battery And Verify Proper Operation Of The Start‑Stop System And Charging Network. Follow Manufacturer Procedures For Any System Checks.
Installation Recommendations
- Always Disconnect The Battery Before Starting Work To Avoid Short Circuits And Prevent Damage To Electrical Components.
- Respect Original Cable Routing To Prevent Chafing, Heat Exposure And Mechanical Strain.
- Ensure Terminal Connections Are Clean, Corrosion‑Free And Properly Tightened To Manufacturer Torque Specifications.
- Replace Any Damaged Clips Or Insulators To Maintain Mechanical Security And Vibration Resistance.
- After Installation, Perform A Visual Check And A Functional Test Of The Start‑Stop System Under Normal Driving Conditions.
Why The Part Most Often Fails
Common Causes Of Failure Include Corrosion At Terminals, Mechanical Damage From Road Debris Or Improper Routing, Heat Degradation Near Exhaust Or Turbo Components, And Poor Original Crimping Or Connector Fatigue. Repeated High Current Pulses During Start‑Stop Cycles Can Accelerate Wear If The Cable Or Its Terminals Are Compromised. Addressing Root Causes Such As Corrosion, Loose Mounting Or Proximity To Heat Sources Extends Service Life.
Notes On Compatibility
This Cable Is Typically Identified By The OE Number 9673518380 And Is Compatible With The Listed Citroën And Peugeot Models Equipped With e‑HDi Engines. Searching By The Part Number Provides The Fastest Way To Confirm Fitment When Replacing Start‑Stop System Components.








