This Headlamp Washer Nozzle Set (KGQ Kyanos Blue) Provides A Direct Replacement For Damaged Or Missing Front Washer Nozzles On Citroën C4 Picasso Models. The Complete Kit Includes Nozzles And Painted Caps Matched To The KGQ Kyanos Blue Body Colour, Making It Ideal For Professional Garages And Do-It-Yourself Enthusiasts Who Need A Clean, Factory-Looking Finish. Customers Frequently Search By Part Numbers 6438T4, 6438T5 And 7414SG—entering These References Can Speed Up The Purchase Process.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 Picasso (Including Grand C4 Picasso)
• Product Codes: 6438T4, 6438T5, 7414SG
• Other Numbers: Color Code KGQ (Kyanos Blue)

Function And Benefits

Headlamp Washer Nozzles Are Designed To Deliver A Focused Spray Of Washer Fluid Onto The Headlight Lens, Improving Night-Time Visibility And Removing Road Dirt, Salt And Insects That Reduce Light Output. This Complete Set Restores Proper Coverage And Appearance, Ensuring Even Spray Pattern And Correct Fitment With Painted Caps For A Seamless Look.

How The Part Is Replaced

Replacement Is Straightforward For A Trained Technician Or A Competent DIYer With Basic Tools. Typical Steps:

• Park The Vehicle Safely And Switch Off The Ignition.
• Relieve System Pressure By Activating The Washer Pump Until The Lines Are Emptied.
• Gain Access To The Nozzles Through The Front Bumper Opening Or Wheel Arch Liner, Depending On Model.
• Disconnect The Washer Hose (And Electrical Connector If Present) From The Old Nozzle.
• Release The Retaining Clips Or Fasteners And Remove The Old Nozzle And Cap.
• Fit The New Nozzle And Cap, Reattach Hose And Any Electrical Connections, Then Secure Retainers.
• Test The System: Check Spray Pattern, Retraction/Extension (If Applicable) And That Caps Sit Flush With Bodywork.
• Reassemble Any Removed Trim Panels.

Installation Recommendations

Use Appropriate Tools And Protective Gloves. If Access Requires Removing The Bumper Or Inner Liners, Follow Manufacturer Procedures To Avoid Damage. Check Hoses For Cracks And Replace Seals Or Clips If Worn. After Installation, Verify Correct Spray Angle And That No Leaks Occur At The Hose Connections. If In Doubt, Perform Work In A Workshop Equipped For Body Trim Removal.

Most Common Failure Reasons

Headlamp Washer Nozzles Typically Fail Due To Ageing And Environmental Exposure. Common Causes Include:

• Plastic Degradation From UV Exposure Causing Cracks Or Breakage.
• Impact From Road Debris Or Minor Collisions That Break The Nozzle Or Cap.
• Clogging From Contaminated Washer Fluid Or Sediment In The System.
• Freezing In Winter Months Leading To Cracked Housings Or Split Hoses.
• Worn Retaining Clips Or Seals Allowing Movement And Subsequent Damage.

Preventive Measures Include Using Correct Washer Fluid, Draining/Protecting The System In Freezing Conditions And Inspecting Nozzles During Routine Service Intervals.

Compatible With Workshops And DIYers Looking For A Colour-Matched, Direct-Fit Replacement For Citroën C4 Picasso Headlamp Washer Nozzles. Search By Part Numbers 6438T4, 6438T5 Or 7414SG To Find This Exact Set.

This genuine replacement rear left lamp is suitable for Citroën C4 Grand Picasso models and is identified by the product code 6350AC. Designed to restore full rear lighting functionality and road visibility, this assembly is an ideal choice for professional workshops and DIY mechanics who require a reliable, direct-fit part. Clear lens optics and precise mounting points ensure correct alignment and light distribution after installation.

Technical Information

• Manufacturer: Stellantis (Citroën)
• Model: Citroën C4 Grand Picasso; Citroën C4 Picasso
• Product Codes: 6350AC
• Other Numbers: No additional OEM numbers provided
• Condition: Used part

Compatibility And Fitment

Fits the rear left side (driver side on left-hand drive vehicles) of Citroën C4 Grand Picasso. Intended as a direct replacement for the original tail light assembly when the original unit is damaged, cracked or suffering electrical faults. Always verify visual match with the vehicle before installation.

Installation Recommendations

Basic replacement steps for experienced technicians or competent DIY mechanics:

• Open the tailgate and remove interior trim panels to access mounting screws and electrical connector.
• Unscrew the retaining bolts and carefully release any clips holding the lamp in place.
• Disconnect the wiring harness plug and remove the old lamp assembly.
• Compare bulb sockets and gaskets; transfer bulbs if required or replace with recommended types.
• Install the new lamp, reconnect the harness, secure bolts and re-fit trim panels. Check alignment and seal seating to avoid water ingress.

Recommended precautions: Disconnect the battery before working on vehicle electrics to avoid short circuits. Inspect and clean connectors, use dielectric grease on terminals if necessary, and tighten fasteners to the manufacturer’s recommended torque to prevent damage to mounting tabs.

Most Common Reasons For Failure

• Water Ingress: Failed seals or cracked lens allow moisture, causing corrosion or short circuits.
• Impact Damage: Rear-end collisions or knocks commonly crack the lens or break mounting tabs.
• Connector Corrosion: Oxidation of contacts leads to intermittent or complete electrical failure.
• Bulb/Socket Wear: Repeated bulb changes and heat cycles can degrade sockets or holders.
• Aging Seals and Plastics: UV exposure and temperature cycles make housings brittle and leaky over time.

Notes For Professionals

When replacing a used lamp assembly, always check the integrity of the mounting points and the condition of the wiring harness. Align the unit correctly and test all functions (tail, brake, indicator, reverse where applicable) before returning the vehicle to service.

Product Overview

This rear right lamp is a direct-fit replacement designed for the Citroën C4 Grand Picasso. Engineered to match the original mounting points and electrical connector layout, it restores all external lighting functions on the right-hand rear of the vehicle. The part is suitable for professional workshops and skilled DIY mechanics who require a reliable tail-light assembly for repairs or collision damage repairs. Common search term: 6351AC.

Key Features

• Direct-fit replacement for the right rear position on Citroën C4 Grand Picasso models.
• Complete lamp assembly including housing and lens; compatible with original mounting brackets.
• Supports the vehicle’s tail, brake and indicator light functions; depending on equipment, unit may also integrate reverse light or rear fog light.
• Designed to interface with original wiring harness and connector types used by Citroën.
• Part number commonly searched: 6351AC — useful for quick identification in catalogues and search engines.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: C4 Grand Picasso (Rear Right Lamp)
• Product Codes: 6351AC
• Additional Numbers: Not available

Installation Recommendations

Recommended for installation by qualified technicians or experienced DIYers. Typical replacement steps:

1. Park vehicle on level surface and ensure ignition is off.
2. Disconnect the negative battery terminal to prevent short circuits during work.
3. Open tailgate and remove interior trim panels to access mounting screws/bolts.
4. Unscrew mounting fasteners, carefully pull the lamp assembly rearward and unplug the electrical connector(s).
5. Fit the new lamp, connect the wiring harness and secure all fasteners to the manufacturer’s recommended torque values.
6. Check and test all light functions (tail, brake, indicator, reverse, rear fog) before reassembling interior trim.

Use replacement gaskets or sealant where needed to ensure watertight fit. Replace any damaged clips or fasteners to maintain correct alignment and sealing.

Why The Part Commonly Fails

• Impact Damage: Rear collisions or knocks can crack the lens or break mounting points.
• Water Ingress: Damaged seals or cracked lenses allow moisture to enter, causing corrosion or electrical faults.
• Bulb Or LED Module Failure: Traditional bulbs burn out over time; LED modules can fail due to thermal stress or internal electronics degradation.
• Connector Corrosion Or Wiring Faults: Corroded pins or chafed wiring can interrupt signals and cause intermittent operation.

Service Life And Maintenance

There is no fixed replacement interval for the lamp assembly itself; replace when damaged, cracked, or when lighting functions are compromised. Bulb lifetimes vary by type—halogen/incandescent bulbs typically last a few years in everyday use, while LED modules usually offer longer life but may require full-lamp replacement if they fail.

Notes For Mechanics And DIY Enthusiasts

When ordering, use the product code 6351AC and the vehicle model designation to improve search accuracy. Inspect mounting points and wiring harness for hidden damage after a collision. If the lamp is replaced due to moisture or condensation, verify and renew seals to prevent repeat failures.

This rear left wing bulb holder (socket) is a direct-fit spare part designed for the Citroën C4 Picasso series. Ideal for professional garages and DIY mechanics, the unit includes a short pigtail cable for straightforward reconnection. Commonly searched by product numbers 9653547580 and 6350CA, this part restores reliable electrical contact and mechanical fixation for tail, stop and indicator bulbs in the left rear lamp assembly.

Features

• Direct replacement socket for the rear left (driver side) wing lamp.
• Includes a short length of wiring (pigtail) for easier installation.
• Robust plastic body with integrated electrical contacts for stable bulb connection.
• Compatible with standard rear lamp bulb types used on Citroën C4 Picasso models.
• Often identified and ordered by OEM codes 9653547580 / 6350CA.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 Picasso, Citroën C4 Grand Picasso
• Product Codes: 9653547580, 6350CA
• Additional Numbers: 6350CA, 9653547580

Installation Recommendation

• Safety First: For work on electrical connections it is recommended to disconnect the negative battery terminal to avoid short circuits. Take care not to damage trim or lamp clips during removal.
• Access: Remove or open the rear lamp assembly from the wing (access via boot or inner wing liner depending on model year) to reach the bulb holder.
• Replacement Steps: Unplug the lamp connector, release the retaining tabs on the old holder, remove the holder and replace with the new unit including the pigtail. Ensure the holder seats correctly and retaining clips engage.
• After Installation: Reconnect the wiring, test all rear light functions (tail, brake, indicator, reverse if applicable) and verify there is no play or water ingress at the mounting point.
• Good Practice: Inspect bulb condition and socket contacts when replacing—clean contacts or replace bulbs if signs of overheating or corrosion are present.

Why The Part Commonly Fails

• Corrosion of electrical contacts due to moisture ingress is the most frequent cause of failure, leading to intermittent lighting or open circuits.
• Heat damage from high-wattage bulbs or poor contact can melt or deform the plastic socket and contacts.
• Mechanical stress or brittle aging of plastic (UV exposure, vibration) can crack retaining tabs and cause poor retention in the lamp housing.
• Damaged wiring or connector pins from previous repairs or incorrect handling during lamp removal.

Notes

This bulb holder is supplied with a short length of wiring to simplify reconnection on the driver’s side rear wing lamp. Many customers search by the OEM numbers 9653547580 and 6350CA — including these codes in your order will help ensure the correct part is selected. Suitable for use by professional technicians and experienced DIY mechanics familiar with lamp cluster removal and basic vehicle electrics.

Order now to restore reliable rear lighting and prevent intermittent faults or complete lamp failure on the left rear wing of your Citroën C4 Picasso.

Description

Replacement bulb socket designed for the rear right tail lamp mounted in the wing of Citroën C4 Picasso models. The part includes a short length of wiring and the connector required to mate with the vehicle loom, making it suitable for direct replacement of a damaged or corroded lamp holder. Ideal for professional workshops and competent DIY mechanics who perform lamp and rear-body repairs.

Key Benefits

• Direct fit for the rear right (passenger side) lamp assembly.
• Included wiring piece reduces the need to splice or fabricate connections.
• Restores reliable electrical contact for brake, tail, and indicator bulbs.
• Useful spare when replacing a complete lamp unit or repairing water-damaged connectors.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 Picasso (rear right, wing-mounted tail light)
• Product Codes: 9653547480, 6351CA
• Other Numbers: 6351CA | 9653547480

Function

The socket secures the bulb in the rear right lamp assembly and provides the electrical connection between the lamp filament/LED module and the vehicle wiring harness. It ensures stable contact, correct bulb positioning and helps prevent short circuits or intermittent connections caused by corrosion or damaged terminals.

Common Failure Modes

This part most frequently fails due to water ingress and corrosion of the contacts, heat damage from an improperly seated or overloaded bulb, mechanical cracking from impact or repeated removal, and insulation wear leading to short circuits. Symptoms include flickering lights, intermittent operation, or complete loss of one or more rear lamp functions.

Installation Recommendations

Recommended for installation by experienced technicians or competent DIYers. Typical replacement steps:

1. Park the vehicle on a level surface and switch off the ignition.
2. Disconnect the negative battery terminal to avoid short circuits when working with rear lamp wiring.
3. Remove the interior trim or access panel in the boot to reach the lamp assembly fasteners.
4. Unscrew and gently withdraw the lamp unit from the wing to access the bulb holder.
5. Unplug the old socket from the vehicle connector and remove any damaged wiring or retained clips.
6. Fit the new bulb holder, connect the supplied wiring section to the vehicle loom using the original connector or approved splicing method, and secure all fixings.
7. Test all lamp functions (tail, brake, indicator, reverse if applicable) before reassembling trim.
8. Reconnect the battery and ensure all fasteners and seals are correctly refitted to maintain water resistance.

Use dielectric grease on terminals to improve contact longevity and help prevent corrosion. Replace damaged seals or gaskets to restore watertight integrity.

Why Replace This Part

Replacing the bulb holder is a cost-effective repair when the lamp unit itself is intact but electrical contacts or connector assemblies have failed. It restores reliable lighting and road safety without the expense of a full lamp replacement.

Compatibility Notes

Designed for Citroën C4 Picasso rear right (passenger side) wing-mounted lamp assemblies. Check the product codes 9653547480 and 6351CA when searching for exact matches to ensure correct fitment.

This used OEM rear right fender lamp is a direct replacement for Citroën C4 Picasso and compatible Grand Picasso models. Designed for mechanics and experienced DIY enthusiasts, the unit restores rear lighting functions (position, stop and turn signal; depending on vehicle variant may also include reversing or fog light functions). Supplied with original part references 9653547480 / 6351CA for easy lookup in parts catalogs and service lists. Ideal when the original lamp is cracked, water damaged or its electrical contacts have corroded.

Key Features

• Direct Fit For Citroën C4 Picasso / C4 Grand Picasso (Passenger Side, Rear Right)
• OEM Reference Numbers: 9653547480, 6351CA
• Restores Full Rear Lighting Functions: Position, Brake And Turn Signal (Variant Dependent)
• Suitable For Professional Workshops And Competent DIY Repairs

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 Picasso; Citroën C4 Grand Picasso
• Product Codes: 9653547480, 6351CA
• Additional Numbers: NFP (as referenced in supplier listing)

Installation Recommendation

• Preparation: Switch Off Ignition And Remove Key. For added safety, disconnect The Negative Battery Terminal If You Will Work On Wiring.
• Access: Open The Tailgate/Boot Lining Or Remove Interior Trim Panels To Reach The Fender Lamp Fasteners.
• Removal: Unscrew Fasteners, Release Clips And Carefully Pull The Lamp Assembly Out Of The Fender. Unplug The Electrical Connector And Remove Any Retained Bulbs Or Sockets If Necessary.
• Fitment: Check Mounting Points And Seals. Connect The Electrical Plug, Position The Lamp Into The Fender, Reinstall Fasteners And Replace Trim. Ensure Gaskets Or Seals Sit Correctly To Prevent Water Ingress.
• Testing: Before Final Assembly, Test All Lighting Functions (Position, Brake, Indicator, Reverse/Fog If Present). Align The Lamp And Recheck Seals After A Short Test Drive.
• Estimated Time: Approximately 30–60 Minutes Depending On Access And Whether Interior Trim Must Be Removed.

Why This Part Fails Most Often

• Water Ingress And Moisture Sealing Failure Leading To Corrosion Of Contacts Or Internal Electronics.
• Impact Damage From Minor Collisions Or Parking Scrapes Causing Cracks In The Lens Or Mounting Tabs.
• Connector And Pin Corrosion Due To Road Salt Or Poor Sealing.
• Bulb Burnout Or, In Some Variants, LED Module Degradation Over Time.

Fitment And Replacement Notes

Confirm That The Vehicle Uses The Same Connector Shape And Mounting Points As The Supplied Unit. When Replacing, Inspect Wiring, Sockets And Gaskets; Replace Any Damaged Fasteners Or Seals To Avoid Repeat Failures. For Professional Installations, Use Correct Torque For Fasteners And Ensure Proper Alignment To Prevent Water Trapping.

This rear right tail lamp (tailgate mount) is a direct-fit replacement for Citroën C4 Picasso models and Grand C4 Picasso variants where the part number 9673164980 / 6351CC is referenced. Designed to restore the tailgate lighting assembly’s appearance and functionality, the unit ensures correct brake, tail, and indicator light signals and fits the passenger-side (right) position on the liftgate. Ideal for professional workshops and DIY mechanics searching by part number, this listing helps you quickly find the exact lamp you need for a reliable repair.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 Picasso / Grand C4 Picasso (Tailgate, Right / Passenger Side)
• Product Codes: 9673164980, 6351CC
• Other Numbers: NFP

Function

The tailgate tail lamp houses multiple circuits: rear position (tail) light, brake light, rear indicator, and often the rear fog light or reversing lamp depending on the vehicle wiring. It provides visibility to following traffic and communicates braking and turning intent; correct fitment and sealing are essential for safety and legal compliance.

Replacement Guide

Typical replacement steps for the tailgate lamp (general procedure):

1. Open the tailgate and support it securely.
2. Remove interior tailgate trim or access panel to reach the lamp mounting screws and electrical connector.
3. Disconnect the lamp electrical connector (press release tab) and remove mounting screws or clips.
4. Carefully extract the old lamp from the tailgate, taking care not to damage the wiring or paint.
5. Clean the mounting area and check the rubber gasket/seal; replace seal if deteriorated.
6. Install the new lamp, secure mounting fasteners, reconnect the electrical connector, and test all light functions before reassembling trim.

Installation Recommendations

• Work On A Cool, Dry Day: Moisture can hide corrosion and complicate sealing.
• Check And Replace Gaskets: Ensure the tailgate lamp housing seal is intact to prevent water ingress.
• Use Correct Tools: Trim removal tools, Torx/Screwdrivers and a multimeter or test lamp for function checks.
• Test Before Reassembly: Verify Tail, Brake, Indicator, And Fog/Reversing Lamps Work Correctly.
• Electrical Safety: Switch Off Vehicle Electrical Systems When Disconnecting Plugs; If In Doubt, Disconnect The Battery To Avoid Short Circuits.

Most Common Failure Causes

Tailgate lamps rarely have a fixed service interval; failures are normally caused by external damage or environmental factors. Typical reasons for failure include:

• Impact Or Body Damage From Minor Collisions Or Loading Incidents.
• Water Ingress Due To Deteriorated Seals Or Cracked Lens Causing Corrosion Or Electrical Faults.
• Corroded Electrical Connectors Resulting In Intermittent Or No Function.
• Bulb Or LED Module Failure (If Applicable) Over Time — LEDs Usually Last Longer But Entire Unit May Need Replacement If Encapsulated).

Why Choose This Part

Searching by part number (9673164980 / 6351CC) is the fastest way to ensure compatibility. This lamp restores correct signaling and appearance on the tailgate of Citroën C4 Picasso models, helping you complete accident repairs, replace damaged lenses, or resolve moisture-related faults quickly and professionally.

Product Overview

This rear left tailgate lamp is a direct-fit replacement for Citroën C4 Picasso models and is commonly referenced by part numbers 9653547777 and 6350CC. Designed for professional workshops and experienced DIY mechanics, the unit restores correct rear lighting and fitment on the tailgate, maintaining OEM appearance and mounting points.

Features And Benefits

• Direct Replacement: Designed to match original mounting points and connector layout for an accurate fit.
• OEM Reference Numbers Included: Easy to locate in catalogs and search engines using 9653547777 or 6350CC.
• Driver Focused: Left side unit intended for the driver side tailgate, ensuring correct beam orientation and symmetry.
• Durable Construction: Body and lens built to withstand road conditions; sealing quality is critical for long life.

Installation Recommendations

• Prepare The Vehicle: Park on a level surface and ensure the tailgate is supported. If possible, have a second person assist with handling the lamp assembly.
• Power Isolation: Before disconnecting electrical connectors, switch the ignition off and isolate the vehicle electrical system to avoid shorts.
• Access The Lamp: Open the tailgate, remove the interior trim or access panel, and locate the fasteners securing the lamp assembly.
• Remove The Old Unit: Unscrew retaining bolts, carefully release any plastic clips, and unplug the wiring connector. Check for hidden screws along the inner edge of the tailgate.
• Fit The New Unit: Position the replacement lamp, engage clips, tighten fasteners to a firm but not excessive torque, and reconnect the wiring harness.
• Seal And Test: Ensure the gasket and sealing surfaces are clean and undamaged. Reconnect power and test all lamp functions (tail, stop, indicator, reverse if applicable) before refitting trim panels.
• Final Check: Confirm alignment and that no wiring is pinched when closing the tailgate.

Most Common Cause Of Failure

• Water Ingress: Damaged seals or cracked lens allow moisture to enter, causing corrosion or electrical faults.
• Impact Damage: Rear impacts or loading damage to the tailgate often fracture the lens or break mounting tabs.
• Connector Corrosion: Road salt and moisture can corrode contacts in the wiring plug, causing intermittent or complete failure.
• Bulb Or LED Failure: Individual light sources can fail with age; full assemblies are often replaced to restore correct optics and sealing.

Technical Information

• Manufacturer: Stellantis (Citroën)
• Model: Citroën C4 Picasso
• Product Codes: 9653547777, 6350CC
• Other Numbers: 9653547777 | 6350CC

Notes For Buyers

This lamp is frequently searched by its product codes 9653547777 and 6350CC, so using these numbers when looking up fitment will increase the chance of finding the correct unit quickly. Installation is suitable for experienced mechanics and competent DIYers with basic tools. If the tailgate shows deformation or damaged mounting points, additional repair may be required to ensure correct lamp alignment and sealing.

Reliable replacement bulb socket designed for the tailgate lamps of Citroën C4 Picasso and compatible Grand Picasso models. This socket secures the rear lamp bulbs, provides the electrical contact surface and includes a short length of wiring to simplify installation. Ideal for workshop technicians and DIY enthusiasts searching by part number (e.g. 9653547480, 6351CC, 9653547777, 6350CC), this unit restores stable lighting operation when the original socket shows signs of wear or electrical failure.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model(s): Citroën C4 Picasso, Citroën C4 Grand Picasso
• Product Codes: 9653547480, 6351CC, 9653547777, 6350CC
• Other Numbers: 6351CA, 6351cc, 6350cc

Product Function And Benefits

The bulb holder (socket) provides mechanical support and the electrical contacts for rear tailgate bulbs (brake, indicator, tail lamp). A secure socket ensures consistent contact pressure and correct grounding to avoid flicker or intermittent failure. Supplied with a piece of wiring, this part helps when the original connector or short section of harness is damaged or brittle.

Common Failure Modes

• Corrosion of contact pins due to moisture ingress causing poor electrical connection and intermittent lighting.
• Heat-related deformation or melting from high-wattage bulbs or repeated thermal cycling leading to cracked plastic or loose contacts.
• Broken or frayed wires at the connector caused by repeated opening/closing of the tailgate and vibration.
• Burnt contacts from arcing when contact resistance increases.

Installation Recommendations

• Disconnect the battery before starting work to avoid short circuits and ensure safety.
• Remove the tailgate inner trim to access the lamp assembly. Keep fasteners and clips organised for reassembly.
• Unplug the lamp harness and remove the lamp cluster if required to reach the bulb holder. Note the orientation of the socket before removal (twist-lock or clip style).
• Carefully release the old socket (twist or unclip) and replace with the new unit. Ensure wiring is routed without pinching and that any seals are seated to prevent water ingress.
• Use dielectric grease on contact pins to reduce future corrosion and improve electrical reliability.
• After installation, reconnect the battery and test all rear lamp functions (tail, brake, indicator, reverse if applicable) before reassembling the trim.
• If the harness shows additional damage, repair or replace affected sections and ensure proper grounding.

Why Replace

Symptoms that indicate a failing bulb holder include flickering lamps, lamps that work intermittently, visible corrosion or melted plastic around the socket, or lights that fail only when the tailgate is moved. Replacing the socket and the short wiring piece is a cost-effective repair that restores safe, legal rear lighting and prevents further electrical damage.

This used rear left fender lamp is a direct replacement for Citroën C4 Picasso models and is often referenced by part numbers 9653547580 and 6350CA. Designed to restore rear lighting functions on the driver side, the unit is suitable for mechanics and experienced DIY enthusiasts seeking an OEM-fit solution. The assembly mounts in the rear quarter panel and, depending on vehicle equipment, integrates tail, brake, and indicator lighting circuits. Customers frequently search by product code, so the part numbers are included to simplify identification.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 Picasso (including C4 Grand Picasso)
• Product Codes: 9653547580, 6350CA
• Other Numbers: 6350ca, 9653547580

Function And Fitment

The lamp is intended for the left (driver) rear quarter and provides the required rear lighting functions for safe road use. It is a body-mounted tail lamp (fender-mounted) and is matched to the original mounting points and electrical connector to ensure correct fit and easy replacement in vehicles that use the listed part numbers.

Common Failure Modes

• Moisture Ingress: Seal deterioration or cracked lens allows water into the housing, causing corrosion of contacts and bulbs or condensation that reduces light output.
• Impact Damage: Bumps or minor collisions can crack the lens or deform the mounting tabs, compromising fit and sealing.
• Socket And Wiring Corrosion: Oxidation of bulb sockets or connector pins leads to intermittent or failed circuits.
• Bulb Failure: Incandescent bulbs wear out over time; LED modules (if fitted) can fail due to thermal or electrical stress.

Recommendations For Installation

• Safety First: Disconnect the battery before starting to avoid short circuits. Follow vehicle manufacturer procedures for safe removal and installation.
• Removal: Access the lamp from inside the luggage area or by removing the interior trim to reach screws and the connector. Unscrew mounting fasteners and carefully release retaining tabs to avoid damage.
• Electrical: Unplug the multi-pin connector and inspect pins for corrosion. Clean or replace corroded terminals before fitting the new unit.
• Sealing: Check and, if needed, renew the sealing surface or gasket to prevent future moisture ingress. Ensure the lamp sits flush and fasteners are tightened evenly.
• Testing: Reconnect the battery and test all lighting functions (tail, brake, indicator, reverse where applicable) before reassembling interior panels.
• Spare Parts: Use original-style fasteners and retainers; damaged mounting tabs can be reinforced or replaced to ensure correct alignment.

Why This Part Is Searched By Code

Technicians and vehicle owners commonly look up rear lamps by OEM part numbers (e.g., 9653547580, 6350CA) to confirm fitment. Including these codes in listings increases findability and helps ensure the correct replacement is ordered.

Reason This Part Most Often Fails

The most frequent causes of failure are moisture ingress due to degraded seals or cracked lenses and physical damage from impacts. Corroded connectors and worn bulbs are also common, especially on higher-mileage vehicles or those exposed to harsh climates.