Description
Supply Cable To The START-STOP Capacitor For e-HDi Engines
This replacement supply cable connects the Start-Stop capacitor on 1.6 e‑HDi engines and restores reliable power transfer for Start-Stop operation. Designed for Citroën and Peugeot models, the cable is a direct-fit electrical harness piece that helps eliminate intermittent Start-Stop faults caused by poor connections or damaged wiring. Ideal for professional workshops and DIY mechanics who need a trusted spare part identified by part numbers 9672726880 and 5638NY.
Key Benefits
– Direct replacement for the original Start-Stop capacitor supply line, reducing diagnostic time.
– Restores stable Start-Stop performance and can prevent no-start or Start-Stop disabled warnings.
– Manufactured to match OE electrical interface and routing for easy fitment.
Fitment And Compatibility
Compatible With Selected Models Equipped With 1.6 HDi / e‑HDi Engines:
- Citroën C4
- Citroën C4 Picasso
- Peugeot 308
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4; Citroën C4 Picasso; Peugeot 308 (1.6 HDi / e‑HDi)
- Product Codes: 9672726880; 5638NY
- Additional Numbers: Not Available
Replacement Procedure
- Park the vehicle on a level surface and ensure the ignition is off.
- Disconnect the negative battery terminal before starting work to avoid short circuits and electrical damage.
- Locate the Start-Stop capacitor and trace the supply cable along its routing; remove any trim or covers blocking access.
- Disconnect the faulty cable connectors and any retaining clips. Inspect mating connectors for corrosion or melted insulation.
- Fit the new cable in the same routing, secure all clips and fasteners, and reconnect the connectors with a firm, positive engagement.
- Reconnect the battery, clear any related fault codes if present, and perform a Start-Stop system check to verify correct operation.
Installation Recommendations
- Always disconnect the battery prior to removal and installation to prevent damage and personal injury.
- Inspect connectors and mating terminals for corrosion or damage; clean or replace corroded terminals to ensure a reliable connection.
- Secure the cable along the original routing to avoid contact with hot or moving parts.
- Use proper insulation and dielectric grease on exposed terminals where applicable to prevent future corrosion.
- If the vehicle displays persistent Start-Stop faults after replacement, perform a focused electrical diagnosis (check fuses, relays and system ground points).
Most Common Failure Cause
The supply cable most frequently fails due to connector corrosion, mechanical wear from chafing or improper routing, heat damage near engine components, or degraded insulation allowing intermittent contact. These issues typically present as Start-Stop warnings, system deactivation, or fault codes related to the capacitor circuit. Replacing the cable and correcting routing or connector issues usually restores normal function.
