Description
Engine wiring harness for the negative battery terminal for Citroën and Peugeot vehicles.
This replacement negative battery engine harness (ground wiring) is designed for reliable grounding and stable electrical return paths on Citroën and Peugeot models equipped with 1.6 HDi engines. Supplied under OEM part numbers 9672183080 and 9666488280, the harness is a direct-fit component that restores proper engine-to-chassis grounding, helps prevent voltage drops, avoids erratic sensor behavior and supports correct charging system operation. Ideal for professional workshops and competent DIY mechanics, the harness is a common service item when corrosion, abrasion or connector failure compromise the battery negative circuit.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C4; Citroën C4 Picasso; Peugeot 3008 I; Peugeot 308; Peugeot 5008 I (Commonly 1.6 HDi Engines)
- Product Codes: 9672183080, 9666488280
- Additional Numbers: 9666488280 | 9672183080
Installation Recommendations
Follow a safe, methodical procedure to replace the negative battery engine harness. Suitable for trained technicians and experienced DIYers.
- Ensure Vehicle Is Off: Park on level ground, engage parking brake and remove ignition key.
- Disconnect Battery: Always disconnect the negative battery terminal first to avoid short circuits.
- Access Harness Routing: Remove any engine covers, air intake ducts or battery trays that obstruct access to the harness routing and ground points.
- Document Routing: Note or photograph the original routing and clip locations to ensure correct refitment.
- Remove Old Harness: Unclip and unbolt the harness from its chassis and engine ground points and from the negative battery terminal. Inspect connectors and mating surfaces for corrosion.
- Fit New Harness: Route the new harness following original path, secure clips and fasteners, and attach to all designated ground points and the negative battery terminal.
- Final Steps: Clean mating surfaces if corroded, apply light anti-corrosion treatment if desired, reconnect the battery (negative last) and verify charging system and engine electronics operate normally.
Most Common Failure Causes
- Corrosion At Battery Terminal Or Ground Points Leading To Increased Resistance And Intermittent Loss Of Ground.
- Mechanical Damage From Engine Movement, Road Debris Or Improper Routing Causing Wire Breaks Or Chafing.
- Heat And Vibration Degrading Connectors, Insulation Or Crimps Over Time.
- Water Ingress Or Salt Exposure Accelerating Corrosion On Contacts.
- Previous Repairs Or Poor Quality Connections Resulting In High-Resistance Joints.
Why Replace: A compromised negative harness can cause poor charging, false fault codes, unstable sensor signals and starting issues. Replacing the harness with the correct part number (9672183080 / 9666488280) restores solid grounding and reliable electrical performance.
Order this negative battery engine harness if you work on Citroën and Peugeot 1.6 HDi models and need a direct-fit, numbered replacement to eliminate ground-related electrical faults.
