This heavy‑duty engine positive (battery) cable is designed for Citroën and Peugeot models equipped with the 1.6 e‑HDI diesel engine. It provides the main positive connection between the battery and the vehicle electrical system/starter area, ensuring reliable cranking and power distribution under demanding conditions. The part is commonly searched by OE numbers and aftermarket codes, including 9671135480, 9803511080 and 5642VF.

Compatibility And Application

Direct fit for many Stellantis Group vehicles with the 1.6 e‑HDI powertrain. Typical applications include:

• Citroën C4 II
• Citroën C4 Picasso
• DS4
• Peugeot 3008 I
• Peugeot 308
• Peugeot 5008 I

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II, Citroën C4 Picasso, DS4, Peugeot 3008 I, Peugeot 308, Peugeot 5008 I
• Product Codes: 9671135480, 9803511080
• Other Numbers: 5642VF

Function And Typical Faults

The positive battery cable transfers high current from the battery to the starter motor and primary vehicle electrical distribution. Its function is critical for engine start and for supplying power to major electrical circuits. Failures typically present as slow cranking, intermittent loss of power, blown fuses or visible damage to the insulation or terminals.

Why The Part Most Often Fails

Most common causes of failure are:

• Corrosion At Terminal Lugs Causing Poor Contact
• Heat Damage From Proximity To Exhaust Or Engine Components
• Mechanical Wear From Vibration Or Chafing Against Bodywork
• Contamination From Oil Or Coolant Leaks That Accelerate Degradation

Replacement Interval

There Is No Fixed Service Interval For This Cable; Replacement Is Based On Condition. Inspect During Routine Service For Corrosion, Cracked Insulation Or Loose Connections And Replace If Any Defect Is Found. Harsh Environments Accelerate Wear.

How To Replace

Suitable For Experienced Mechanics And Confident DIY Enthusiasts. Typical Replacement Steps:

1. Park Vehicle On A Level Surface And Isolate Electrical System.
2. Disconnect Battery Negative Terminal First To Avoid Short Circuits, Then Remove Battery Positive Terminal.
3. Trace The Cable To Its Fixing Points (Starter, Fusebox, Ground Straps) And Remove Any Retaining Clips Or Brackets.
4. Unbolt Terminal Connections And Remove Old Cable, Taking Note Of Routing And Any Heat Shields.
5. Fit New Cable Following Original Routing, Secure All Clips/Brackets And Reattach Terminals With Correct Torque.
6. Reconnect Battery Positive Terminal Last, Then Reconnect Negative Terminal. Perform A Cranking Check And Inspect For Secure Connections.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work; Disconnect The Negative Terminal First.
• Clean Mating Surfaces And Terminal Lugs To Ensure Low Resistance Connections.
• Use Appropriate Terminal Protectants And Ensure Proper Crimping Or Bolt Torque According To Manufacturer Specifications.
• Secure Cable Away From High‑Temperature Sources And Moving Parts To Prevent Chafing.
• After Installation, Check Charging System Voltage And Starter Operation To Confirm Correct Function.

Notes For Purchase

This Cable Is Often Searched By Part Numbers 9671135480, 9803511080 And The Internal Tag 5642VF. Choose A Direct Replacement That Matches The Original Terminals, Length And Mounting Points For A Trouble‑Free Fit.

Applicable Models: This engine harness is suitable for various Citroën and Peugeot models equipped with the 1.6 e-HDI engine. It plays a crucial role in ensuring optimal engine performance by maintaining reliable electrical connections.

Installation: Replacing the engine harness is a technical task that involves disassembling several engine components to access the wiring. It is recommended to refer to the service manual for specific instructions tailored to your vehicle model.

Common Issues: Over time, engine harnesses can deteriorate due to exposure to heat, oil, and vibrations. Symptoms of a failing harness include intermittent engine performance, warning lights on the dashboard, and increased fuel consumption. Regular inspections can prevent performance issues.

Technical Information:

• Manufacturer: PSA
• Model: Citroën Peugeot 1.6 e-HDI
• Product Codes: 9678303780, 9671135480, 9673749780
• Other Numbers: 6585J0

This genuine-style engine positive cable (OE 9671135480) is designed to restore reliable power delivery in the engine bay of 1.6 e-HDi powered Citroën and Peugeot models. Ideal for mechanics and experienced DIYers, the harness secures the main positive connection necessary for starting and charging circuits. Clear OE reference in the listing makes it easy to find the correct part quickly when searching by product number.

Function: The cable provides a direct, low-resistance positive feed in the engine compartment, ensuring stable voltage to starter, alternator and associated engine electrics. Correct routing and secure connections reduce voltage drops and eliminate intermittent faults that can cause starting problems, charging warnings or electrical gremlins.

How To Replace

Replacement is straightforward for a trained technician or competent DIYer familiar with engine-bay wiring. Typical steps:

• Disconnect the vehicle battery negative terminal before any work to prevent short circuits.
• Remove any engine covers or protective shrouds to access the positive cable routing.
• Document or photograph existing routing and connector orientations to ensure correct refit.
• Release clamps and fasteners securing the old cable, then disconnect at both ends (battery/starter/alternator or junction points).
• Install the new harness following the original routing, fasten all clips, and ensure connectors are fully seated.
• Reconnect the battery and verify starting and charging system operation; inspect for secure fixation and clearance from hot or moving parts.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4; Citroën C4 Picasso; Peugeot 308 (1.6 e-HDi)
• Product Codes: 9671135480
• Additional Numbers: None Listed

Installation Recommendations

• Always disconnect the battery before starting work.
• Follow original routing to avoid contact with exhaust, turbo or other hot components.
• Use correct terminals and torque values where applicable; ensure connectors are clean and free of corrosion.
• Secure the harness with original clips or equivalent fasteners to prevent chafing and vibration damage.
• After installation, check charging voltage and starter engagement to confirm proper operation.

Most Common Failure Reasons

• Corrosion at terminals and connectors causing high resistance and intermittent faults.
• Mechanical wear from vibration or improper routing leading to broken conductors or rubbed insulation.
• Thermal damage from proximity to exhaust components or turbochargers resulting in melted insulation.
• Contamination by oil or road chemicals that degrade contacts and insulation.
• Physical damage from accidents or improper previous repairs.

Choose this harness when you need a direct replacement using OE reference 9671135480. Clear identification and correct fitment help reduce workshop time and avoid repeat visits—important for professional garages and independent enthusiasts tackling engine electrics.