High-quality Bosch high-pressure injection pump intended for professional workshops and experienced DIY mechanics repairing 1.6 E-HDi diesel engines. This unit is compatible with a number of PSA vehicles and selected Ford, Mazda and Volvo models that use the Bosch 0445010516 pump. Supplied from a salvaged vehicle but confirmed to be fully operational, the pump includes an integrated fuel pressure regulator. Customers often search by part numbers 0445010516, 9688499680, 1920RF or 1921J9 — include these codes when locating the correct replacement.

Technical Information

• Manufacturer: BOSCH
• Model(s): 1.6 E-HDi Engines; Compatible With Citroën Berlingo B9, Citroën C4 II, Citroën C4 Picasso, Peugeot 308, Peugeot Partner Tepee (and Other PSA Models Using 1.6 E-HDi)
• Product Codes: 0445010516
• Other Numbers: 9688499680; 1920RF; 1921J9

Function And Typical Behavior

The pump Generates The High Fuel Pressure Required By The Injection System And Regulates Rail Pressure Via Its Integrated Regulator. It Works In Conjunction With The Engine Management System To Ensure Precise Fuel Delivery, Stable Idle And Proper Combustion. Proper Function Is Critical For Engine Performance, Emissions And Fuel Economy.

Replacement And Installation

1. Relieve Fuel System Pressure Before Starting Work.
2. Disconnect The Battery To Avoid Electrical Short Circuits.
3. Protect The Work Area From Dirt And Contamination; Replace The Fuel Filter Before Installing The New Pump To Prevent Premature Failure.
4. Label And Disconnect Electrical Connectors And Fuel Lines; Cap Open Lines To Prevent Contamination And Spillage.
5. Unbolt The Pump From Its Mounting; Keep Fasteners Organized And Replace Any Crush Washers Or Seals.
6. Install The Replacement Pump, Tighten Bolts To Manufacturer Torque Specifications And Reconnect Lines And Connectors.
7. Prime The Fuel System And Bleed Air Thoroughly Using The Correct Procedure For The Vehicle (hand Primer Pump Or Ignition Cycling As Required).
8. Start The Engine, Check For Leaks, Monitor Rail Pressure And Clear Any Diagnostic Trouble Codes If Present.
9. Perform A Test Drive And Final Check Of Fuel Pressure And Engine Behavior.

Always Follow Manufacturer Torque Specifications And Service Procedures. Use Clean Fuel And New Sealing Components Where Required.

Installation Recommendations

• Work In A Clean Environment To Avoid Introducing Contaminants Into The Fuel System.
• Replace Fuel Filter And Use High-Quality Fuel To Extend Pump Life.
• Replace Seals, Crush Washers And Any Perishable Fittings During Installation.
• If Uncertain, Perform Post-Installation Checks With A Diagnostic Tool To Verify Rail Pressure And Injection Timing.

Why This Part Fails Most Often

• Fuel Contamination (Dirt, Rust, Water) Leading To Internal Wear And Valve/Regulator Damage.
• Poor Fuel Quality Or Incorrect Additives Causing Accelerated Wear.
• High Mileage And Normal Mechanical Wear Of Internal Components.
• Corrosion From Water In Fuel Or Long Periods Of Inactivity.
• Failure Of The Pressure Regulator Or Associated Actuator/Electrical Components.

Signs Of A Failing Pump

Loss Of Power, Rough Idle, Hard Starting, Increased Smoke Or Fuel Consumption, Fuel Leaks Around The Pump, Or Diagnostic Trouble Codes Related To Fuel Pressure Are Common Indicators That The High-Pressure Pump Or Its Regulator May Be Failing.

Product Overview

This tail light socket assembly is intended for the left outer rear lamp on Citroën C4 II (B7) vehicles. The unit holds the bulbs and provides the electrical and mechanical connection to the vehicle wiring harness. Often searched by part numbers 6350KS and 9687312180, this component is suitable for both workshop technicians and experienced DIY mechanics who need a straightforward replacement to restore reliable rear lighting.

Key Benefits

• Direct fit to the left outer rear lamp—no modification required on compatible models.
• Restores secure electrical contact and correct bulb positioning to prevent flicker and intermittent operation.
• Compact plug-and-play design simplifies replacement during routine lamp repairs.
• Commonly referenced by OEM codes 6350KS and 9687312180 for quick lookup in parts databases.

Installation

Replacement is straightforward for a competent mechanic or a DIYer with basic tools. Typical steps:

• Open Boot And Remove Inner Trim: Access the tail light cluster from inside the trunk by removing the trim panels and any fasteners.
• Unbolt Tail Light Assembly: Remove screws or bolts holding the outer lamp and carefully pull the lamp housing away from the body.
• Disconnect Wiring Connector: Unplug the lamp harness connector to free the assembly.
• Remove Old Socket: Turn and release the bulb holder/socket from the lamp housing (or unclip, depending on design) and extract the bulbs if needed.
• Fit New Socket: Insert the new socket into the lamp housing until it locks, replace bulbs if not included, reconnect the wiring connector and reassemble the lamp into the body.
• Test Operation: Verify all rear lamp functions (tail, brake, turn signal, reverse if applicable) before reinstalling trim.

Recommended Tools: Trim pry tools, Phillips or Torx drivers (depending on fasteners), gloves and a multimeter for troubleshooting continuity if required.

Installation Recommendations

• Inspect Wiring And Seals: Check harness connectors and rubber seals for corrosion or damage; replace damaged seals to prevent water ingress.
• Use Dielectric Grease: Apply a small amount of dielectric grease to metal contacts to improve corrosion resistance and electrical contact.
• Avoid Excessive Force: Handle plastic tabs and clips gently to prevent breakage during removal and installation.
• Verify Bulb Type And Fitment: Use the correct bulb types and ensure they are seated correctly to avoid overheating and poor contact.

Why The Part Commonly Fails

• Corrosion And Moisture Ingress: Water or condensation entering the lamp housing causes corrosion of contacts and poor conductivity.
• Heat And Thermal Cycling: Repeated heating from bulbs and cooling cycles can degrade plastics and contact springs, causing loose connections.
• Mechanical Damage: Rough bulb changes, impact, or damaged lamp housings can crack sockets or bend contacts.
• Electrical Issues: Overvoltage, poor grounding or worn wiring can accelerate contact wear and cause intermittent lighting faults.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 II (B7) — Left Rear Outer Lamp
• Product Codes: 6350KS, 9687312180
• Other Numbers: 6350KS | 9687312180

Notes For Buyers

Searchable by the common part numbers 6350KS and 9687312180, this socket assembly is an efficient fix for lighting faults on the left outer rear lamp of Citroën C4 II models. Ideal for garages and competent DIYers who perform routine lamp and wiring repairs.

This used left rear outer tail light is a cost-effective, direct-fit replacement for Citroën C4 II (B7) vehicles. Supplied without bulb sockets and bulbs, it lets workshops and DIY enthusiasts replace a damaged assembly quickly while keeping repair costs down. The lamp carries the Stellantis references 9687312180 and 6350KS and is intended for the driver side (left) outer position. Ideal for mechanics and competent owners who handle body and lighting repairs.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 II (B7)
• Product Codes: 9687312180
• Additional Numbers: 6350KS

Function And Notes

This outer rear lamp assembly provides the exterior brake/tail and turn-signal lighting required for safe road use. Depending on the vehicle configuration, the unit may also integrate the reversing lamp or rely on a separate inner lamp. The item is delivered without bulb holders and bulbs, so remember to order the correct socket and bulbs if they are not reused from the original unit.

Installation Recommendations

1. Prepare The Car: Park on a level surface, switch off the ignition and remove the key. For additional safety you may disconnect the negative battery terminal.
2. Access The Lamp: Open The Tailgate/Boot And Remove The Inner Trim Panel To Reach The Retaining Nuts Or Screws.
3. Remove The Old Unit: Unscrew The Fasteners, Gently Pull The Lamp Outwards And Disconnect The Electrical Connector. If Reusing Bulb Holders, Remove Them Carefully.
4. Fit The New Lamp: Position The Replacement Lamp, Reconnect The Electrical Connector And Refit Fasteners. Ensure The Sealing Gasket Sits Correctly To Prevent Water Ingress.
5. Test The Functions: Check Tail, Brake, Indicator (And Reverse If Applicable). Correct Any Faults Before Reassembling Trim.
6. Final Checks: Refit Interior Trim, Tighten Fasteners To Manufacturer Practice (Avoid Over-Tightening), And Inspect For Proper Alignment And Sealing.

Tip: Use dielectric grease on connectors to reduce corrosion and ensure a reliable electrical connection. Replace any damaged grommets or seals to avoid moisture entering the lamp housing.

Why This Part Commonly Fails

• Impact Damage: Rear collisions or knocks are the most frequent cause of cracked lenses and damaged mounts.
• Moisture Ingress: Broken seals or degraded gaskets allow water into the housing, causing corrosion of contacts and failure of bulb holders.
• Connector And Socket Corrosion: Salt and road contaminants corrode contacts, leading to intermittent operation or complete failure.
• Aging And Thermal Stress: Over many years, plastic components can become brittle and lenses may cloud or crack.

For professional-fit results, follow workshop procedures and verify all lighting functions after replacement. This part is suitable for experienced mechanics and competent DIY installers familiar with bodywork and electrical connections on Citroën C4 II vehicles.

Replacement decorative frame for the left inner rear lamp on Citroën C4 II (B7) models. This trim piece fits into the tailgate around the lamp housing and restores the original appearance after damage or wear. Ideal for professional workshops and DIY enthusiasts who want an OEM-style finish. Commonly searched by part numbers 9672155880 and 7453E4, this item improves the visual integrity of the rear light assembly and helps secure the lamp trim in place.

Compatibility

Fits Citroën C4 II (B7) tailgate, driver’s side (left). Typical model years: 2010–2018. Confirm fitment by matching the part number(s) listed below with the vehicle’s existing part.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 II (B7)
• Product Codes: 9672155880, 7453E4
• Other Numbers: 74530000

Installation Recommendations

• Work On A Clean, Stable Surface With The Tailgate Open And Supported.
• Remove Interior Tailgate Trim To Access Rear Lamp Assembly. Use Plastic Trim Tools To Avoid Damage To Panels And Clips.
• Unclip Or Unscrew The Rear Lamp Housing Depending On Variant, Then Gently Release The Decorative Frame From The Lamp Housing.
• Inspect Fasteners And Clips; Replace Any Damaged Clips To Ensure Secure Fitment Of The New Frame.
• Refit The Lamp Assembly And Interior Trim In Reverse Order. Check Alignment And Even Gaps Around The Lamp.
• Estimated Time: 30–60 Minutes For Experienced Technician; Longer For DIYers Without Special Trim Tools.

Why This Part Most Commonly Fails

• Impact Damage From Minor Collisions Or Loading/Unloading In The Boot Causing Cracks Or Breakage.
• Plastic Fatigue And Brittleness Over Time Due To UV Exposure And Temperature Cycles, Leading To Broken Clips Or Fractures.
• Improper Removal Using Metal Tools That Damage Mounting Points Or Deform The Frame.
• Corrosion Or Degradation Of Adjacent Fasteners That Prevent Proper Retention, Causing Rattles Or Misalignment.

Notes For Professionals And DIYers

This is a body trim component—no electrical work is required when replacing the frame itself, but if the lamp assembly is removed, inspect connectors and seals for wear. Use new clips when necessary to ensure a secure, factory-like installation. Keep parts clean and free of debris during reassembly to maintain a weatherproof seal around the lamp.

Replace the worn or damaged left dashboard air vent with this direct-fit unit designed for Citroën C4 II B7 and DS4 models. This vent grille restores correct airflow direction and appearance on the driver’s side, matching the original Black Mistral finish for a factory look. Frequently searched by part numbers, this replacement is ideal for professional workshops and DIY mechanics who need a fast, reliable interior repair.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II B7; DS4
• Product Codes: 9671332377, 8247S2
• Other Numbers: 96766097ZD

Compatibility

Fits Left Side (Driver’s Side) of Citroën C4 II B7 and DS4 dashboards. Confirm the part numbers listed above when searching to ensure exact match—many buyers search using the OE codes.

Function And Typical Faults

The vent grille directs conditioned air into the cabin and provides the trim finish for the dashboard opening. Common failures are broken or weakened mounting clips, cracked plastic from impact or aging, and surface fading or discoloration due to prolonged UV exposure. Mechanical wear or repeated removal during maintenance can also cause the louvers or adjustment mechanism to become loose or noisy.

Installation Recommendations

Recommended Tools: Plastic trim removal tools, small flat screwdriver, lint-free cloth.

1. Carefully pry surrounding trim using plastic trim tools to avoid scratching the dashboard.
2. Release the retaining clips holding the vent; note clip locations to ensure correct refit.
3. Remove the old vent and compare mounting points with the new part to confirm fit.
4. Press the replacement vent into place until all clips engage; check that louvers move freely and sit flush with the dash.
5. Clean the surrounding area and reassemble trim panels.

For best results, handle clips gently and avoid excessive force. If clips are damaged, replace them before final assembly to ensure a secure fit. Work in a well-lit area and keep removed fasteners organized.

Why This Part Most Often Fails

Plastic vents are exposed to sunlight, temperature cycles and mechanical wear: over time UV radiation and heat make the plastic brittle, causing clips to snap during use or removal. Impacts, accidental kicks, or forceful removal during dashboard service are common causes of damage. Cosmetic wear such as fading or micro-scratches also prompts replacement to restore the interior appearance.

Order this left-side vent by OE code (9671332377, 8247S2, 96766097ZD) to quickly restore airflow control and dashboard appearance on Citroën C4 II B7 and DS4 vehicles. Suitable for professional fitters and experienced DIY mechanics looking for an accurate, OEM‑pattern replacement.

This genuine OEM right-hand dashboard air vent is a direct-fit replacement for Citroën C4 II (B7) and DS4 models. Supplied with original part numbers 9671332277 / 8247S1 / 96766069ZD, it restores proper airflow direction and interior appearance on the passenger side. Ideal for professional garages and DIY enthusiasts who need a reliable, cosmetically matching component to replace cracked louvers, broken adjustment tabs, or sun-faded trim.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II (B7), DS4
• Product Codes: 9671332277, 8247S1, 96766069ZD
• Additional Numbers: 8247S1 | 9671332277 | 96766069ZD
• Color: HZD – Black Mistral
• Fitment Position: Right, Passenger Side

Fitment And Replacement

Replacement is straightforward for a trained technician or competent DIYer. Typical procedure:

• Remove the surrounding trim bezel or glovebox trim to access the vent assembly.
• Release the retaining clips that secure the vent to the dashboard; some models may have hidden screws—inspect carefully.
• Withdraw the vent unit and transfer any actuator rods or electrical connectors (if present) to the new vent.
• Install the new vent by aligning tabs and pushing until clips engage, then reassemble the trim.

Installation Recommendations

• Perform the replacement on a clean, well-lit workbench or in-bay area to avoid losing small clips or fasteners.
• Use trim tools to avoid scratching the dashboard; avoid excessive force when disengaging clips.
• If removal involves work near the passenger airbag, follow the vehicle manufacturer’s service instructions to prevent accidental deployment.
• Check all transferred actuator rods and connectors for proper movement after installation and before reassembling the trim.

Why This Part Commonly Fails

• Plastic Fatigue And UV Exposure: Prolonged sun exposure and heat can make plastic brittle, causing louvers or clips to crack.
• Mechanical Damage: Forceful adjustment, impact, or improper removal often breaks small retaining tabs or the vane adjustment mechanism.
• Wear And Tear: Repeated use and cleaning can lead to loosened joints and poor seal/fit, resulting in rattles or misaligned airflow.

This right-hand vent is an economical way to restore interior appearance and proper airflow control. With correct fitment to the listed models and original part numbers, it saves time on diagnostics and ensures a clean, factory-like finish for interior repairs.

This replacement central air vent grille is an OEM-compatible part designed for Citroën C4 II (B7) and DS4 models. It restores proper airflow direction from the dashboard center vents, matches the interior finish in Black Mistral (color code HZD) and fits using the original mounting points for a neat, factory-like appearance. Frequently searched by OE numbers 9676609977 and 8247EC, this part is aimed at professional technicians and experienced DIYers who require a direct-fit, reliable replacement for cracked, worn or discolored center vents.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II (B7); DS4
• Product Codes: 9676609977; 8247EC
• Additional Numbers: Color Code HZD – Black Mistral

Function and Benefits

The central air vent outlet directs and shapes airflow from the HVAC unit into the passenger cabin. Properly functioning louvers allow occupants to aim and control ventilation, improving comfort and defogging efficiency. Replacing damaged or loose vents restores a consistent airflow pattern, eliminates rattles and improves the interior appearance.

Installation Recommendations

Preparation: Park the vehicle on a flat surface and work with the ignition off. Use plastic trim removal tools to avoid damaging surrounding trim. Recommended tools: trim pry set, small flat and Phillips screwdrivers, clean cloth and gloves.

Removal Steps: Carefully pry out surrounding trim panels to access the central vent assembly. Unclip the vent by releasing the retaining clips around its perimeter—apply even pressure to avoid breaking the clips. If necessary, remove any retaining screws behind the trim. Inspect the mounting clips and surrounding dash for damage.

Installation Steps: Align the new vent with the dash opening, ensuring the louvers are set to the desired neutral position. Press evenly until all clips engage with audible clicks. Reinstall any removed trim and fasteners. Verify vent operation and that there are no rattles. Typical replacement time: 15–30 minutes for experienced technicians.

Common Failure Reasons

• Thermal Aging And UV Exposure: Prolonged sun exposure causes plastics and clips to become brittle and crack.
• Mechanical Damage: Forceful handling during cleaning or accidental impacts can break louvers or mounting tabs.
• Wear And Cosmetic Degradation: Surface fading, scratches, and discoloration reduce interior aesthetics and prompt replacement.
• Improper Removal: Using metal tools or excessive leverage during removal often damages retaining clips or surrounding trim.

Why Buy This Part

This central vent grille offers direct-fit compatibility with Citroën C4 II (B7) and DS4 dashboards, matching the factory color and attachment points. It provides a quick, cost-effective way to restore interior function and appearance—ideal for workshops and DIYers who search by OE numbers 9676609977 or 8247EC to find the correct replacement.

Overview

This complete front passenger seat wiring harness is a direct-fit electrical assembly intended for Citroën C4 II (B7) passenger seats. It routes power and signal connections between the vehicle body and seat-mounted components such as side airbags, seatbelt buckle sensors, occupancy/weight sensors, seat heating elements and electric adjustment motors where applicable. Frequently searched by part number 6505H4, this harness is aimed at professional technicians and experienced DIYers performing seat repairs or replacements.

Fitment And Function

• Purpose: Provides all necessary electrical connections for the front passenger seat systems (airbag, occupancy sensor, seatbelt buckles, heaters, motors).
• Compatibility: Citroën C4 II (commonly referenced as C4 B7) passenger front seat applications. Often listed under code 6505H4.
• Typical Symptoms When Faulty: Airbag warning light, seatbelt buckle/unfasten warnings, non-functioning seat heater, loss of power adjustment or intermittent faults and stored seat-related fault codes.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II (B7) — Front Passenger Seat
• Product Codes: 6505H4
• Additional Numbers: No further OEM numbers provided

Installation Recommendation

• Safety First: Before starting work, disconnect the vehicle battery and wait the manufacturer-recommended time to allow SRS capacitors to discharge. Follow Citroën service instructions for SRS-handling to avoid inadvertent airbag deployment.
• Removal: Remove trim panels and bolts securing the seat, then carefully unplug seat electrical connectors and route retaining clips. Support the seat when detaching to avoid straining cables.
• Installation: Route the new harness exactly as the original, secure all clips, and ensure connectors are fully engaged with no visible pin damage. If connectors show corrosion, clean or replace them. Use dielectric grease on non-airbag terminals if appropriate. Refit the seat, reconnect the battery and clear any stored codes with a diagnostic tool after installation.
• Note: If the seat includes an airbag connector, maintain correct connector orientation and locking mechanism. Do not attempt to modify airbag wiring or connectors.

Common Failure Reasons

• Mechanical Wear: Repeated seat travel and adjustment can chafe wires against seat frames or trim, eventually breaking conductors.
• Connector Damage: Pins can bend, corrode or lose contact due to moisture ingress or previous improper handling during repairs.
• Stress And Flexing: Moving components such as reclining and sliding mechanisms place constant flexing stress on harnesses at pivot points.
• Aftermarket Modifications Or Repairs: Poorly routed or spliced wiring after previous repairs can fail prematurely.

Why This Part Matters

A functional seat wiring harness is critical for occupant safety systems and comfort features. Faults often trigger warning lights and can disable safety sensors. Replacing a damaged harness restores reliable electrical connections and maintains proper operation of airbags, seatbelt sensors and comfort functions.

Purchase Tip

Search engines and parts databases commonly index this item by code 6505H4 and by vehicle designation Citroën C4 II / C4 B7. For technicians, having the original connector layout and awareness of SRS procedures makes replacement straightforward and safe.

This complete front driver seat wiring harness (OEM code 6505G1) is designed to restore reliable electrical connections for seat adjustment motors, heating elements, occupancy sensors and airbag/seatbelt plug-ins on Citroën C4 II (B7) models. Built as a direct-fit replacement for worn or damaged seat loom assemblies, the harness helps eliminate intermittent power losses, erratic seat movement and SRS faults caused by broken wires or corroded terminals. Ideal for professional workshops and experienced DIY technicians, the harness is supplied to match original routing and connector interfaces for straightforward replacement.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 II (B7) – Front Driver Seat
• Product Codes: 6505G1
• Additional Numbers: –

Compatibility

Intended for Citroën C4 II (B7) front driver seat applications. Confirm fitment by matching the OEM code 6505G1 and connector shapes on the vehicle harness before installation. Suitable for seats with electric adjustment, seat heating and integrated occupancy/airbag connections.

Function

The seat wiring harness transmits power and signals between the vehicle body and the seat modules: electric motors for fore/aft, tilt and lumbar adjustments, heating elements, occupancy sensors, seatbelt buckle sensors and side airbag connectors where fitted. A correct harness ensures reliable control inputs and prevents SRS/airbag-related fault codes.

Replacement Procedure

• Park vehicle on level ground, engage parking brake and remove ignition key.
• Disconnect the negative battery terminal and wait at least 10 minutes to allow SRS capacitors to discharge.
• Remove trim covers and unbolt the seat from the vehicle floor. Carefully tilt or lift the seat to access under-seat connectors.
• Unplug all seat connectors, taking note of connector locations and retaining clips.
• Disconnect the old harness from seat components and remove any routing clips or tape securing it to the seat frame.
• Install the new harness following the original routing, secure all clips, reconnect each plug and ensure connectors engage fully.
• Refit the seat, torque bolts to manufacturer specification, reconnect the battery and verify seat functions: adjustment, heating and SRS indicator status.
• If airbag or seat belt warning lights remain, read and clear fault codes with an appropriate diagnostic tool and recheck connections.

Installation Recommendations

Always follow manufacturer safety procedures. If the harness includes SRS/airbag connectors, handle with extreme care and consider having the job performed or checked by a technician experienced with SRS systems. Use appropriate tools and, after reconnecting the battery, verify that no fault codes remain. Replace any damaged clips or foam that could allow chafing. Secure the harness so it does not interfere with moving parts of the seat.

Why Parts Most Commonly Fail

Seat wiring harnesses typically fail from mechanical fatigue at flex points where the seat moves. Repeated adjustment causes wires to fracture near pivot points, connectors can corrode from moisture, and insulation may abrade against metal edges or mounting hardware. Additional stress comes from aftermarket seat heaters or heavy-duty use. Symptoms include intermittent seat movement, loss of heating, airbag or seatbelt warning lights and visible damage to the loom or exposed wires.

Notes For Professionals

This part is aimed at professional mechanics and skilled DIYers who are familiar with vehicle electrical systems. After installation, perform a full function check and clear any diagnostic codes. If uncertain about SRS-related work, consult dealer documentation or specialized service equipment.

High-quality USB wiring harness designed for Citroën and Peugeot infotainment systems. This cable restores reliable USB data transfer and charging functionality in vehicles where the factory USB lead has been damaged, corroded or worn. Ideal for professional workshops and experienced DIY mechanics, the harness is compatible with vehicles listed below and is often identified by product codes 9671138380 or 6574SV.

Key Features

• Direct replacement USB harness for infotainment and media ports.
• Supports data transfer and charging for USB devices (phone, media stick).
• Original-style connector interfaces for straightforward installation.
• Durable insulation and connector housings to resist wear from repeated use.
• Marked with product codes 9671138380 and 6574SV for quick identification.

How It Works

The harness carries USB power and USB data lines between the vehicle head unit or media interface and the visible USB socket in the dash, glovebox or center console. A good connection ensures the head unit recognizes mass storage devices and smartphones for audio playback and charging. Faulty wiring or connectors cause intermittent recognition, slow/no charging or complete loss of USB function.

Technical Information

• Manufacturer: Stellantis
• Model: Citroën C4 B7; Peugeot 308 (as listed)
• Product Codes: 9671138380, 6574SV
• Additional Numbers: 6574SV

Installation Recommendations

• Prepare Tools: Trim removal tools, Phillips/flat screwdriver set, and a multimeter for verification.
• Safety: Disconnect the vehicle battery before starting work to reduce the risk of short circuits and protect electronic modules.
• Access: Remove the relevant trim or glovebox/center console panels to reach the OEM connector. Use plastic trim tools to avoid damaging clips and panels.
• Replacement: Unplug the old harness from the head unit and the USB socket. Route the new harness following the original cable path, secure with existing clips or cable ties, and connect both ends firmly.
• Verification: Reconnect the battery, power up the infotainment system and test USB data recognition and charging with a known-good device before reassembling all trim.
• Best Practice: Avoid sharp bends and pinching of the cable. Ensure connectors fully seat with audible click; inspect for any corrosion on the mating contacts.

Why This Part Most Often Fails

• Mechanical Wear: Repeated insertions and removals of USB plugs lead to connector fatigue and broken pins.
• Physical Damage: Caught or crushed wiring during seat or console adjustments can sever conductors.
• Moisture and Corrosion: Exposure to spilled liquids or humid conditions causes contact corrosion and intermittent faults.
• Poor Routing or Installation: Incorrect routing that allows rubbing against sharp edges causes insulation wear and short circuits.
• Manufacturing/Connector Fatigue: Solder joints or crimp connections may crack over many thermal cycles and vibrations.

Troubleshooting Tips

• If USB Is Not Recognized: Check connector seating, inspect for bent pins, and measure 5V supply at the socket with a multimeter.
• If Charging Is Slow: Verify the 5V supply is present and that data lines are intact; some head units negotiate charging current based on data line state.
• Intermittent Connection: Wiggle-test the cable and connectors with the head unit connected to locate a loose contact or broken conductor.

Suitable For

Recommended for mechanics and experienced DIY enthusiasts working on Citroën C4 B7 and vehicles listed as compatible (including Peugeot 308 as provided). Use the product codes 9671138380 and 6574SV to confirm the correct harness when searching parts catalogues or service documentation.

Note

When fitting this replacement harness, follow vehicle-specific disassembly procedures and torque/fastening recommendations from the manufacturer to avoid damage to trim and electronic components.