Description
Bulb socket for the left rear lamp for CITROËN C4 Coupe. Condition Of The Bulbs Is Unknown. Supplied With A Section Of Wiring.
This used replacement bulb holder is intended for the left rear light of the Citroën C4 Coupe and is a common spare part for bodywork and lighting repairs. Frequently sought by part number (9646801777, 6350T6), it is suitable for professional workshops and competent DIY mechanics who need a direct-fit solution for an intermittent or failed rear lamp connection. The socket is supplied with a piece of wiring to simplify installation and repair of a damaged harness section.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 Coupe (Left Rear Lamp)
- Product Codes: 9646801777, 6350T6
- Additional Numbers: Not Available
Fitment
Designed For The Left Rear Light On Citroën C4 Coupe. Verify Fitment By Matching The Part Numbers Above To The Existing Socket On The Vehicle. This Part Is Intended As A Direct Replacement For The Bulb Holder Assembly And The Supplied Wiring Section Helps Replace Localised Harness Damage.
Installation Recommendations
Basic Steps For Replacement (Suitable For Experienced Mechanics And Skilled DIYers):
- Disconnect The Negative Battery Terminal Or Isolate The Circuit To Avoid Short Circuits During Work.
- Gain Access To The Rear Lamp Assembly (Open Trunk/Boot, Remove Interior Trim And Fasteners Securing The Lamp).
- Unplug The Main Connector From The Lamp And Remove The Lamp Assembly From The Body.
- Release The Old Bulb Socket From The Lamp Housing, Cut Back Damaged Wiring If Necessary And Fit The Supplied Wiring Section.
- Install The New Socket, Ensure Secure Electrical Contacts And Correct Bulb Seating, Then Refit The Lamp Assembly And Test All Light Functions (Brake, Tail, Indicator, Reverse As Applicable).
- Check For Water Ingress And Refit Any Seals Or Gaskets To Ensure Weatherproofing.
Tools Recommended: Screwdrivers, Torx/Socket Set (as Required By Vehicle), Wire Crimpers, Heat Shrink Or High-Quality Connectors, Multimeter For Continuity/Voltage Checks. Use Dielectric Grease On Contacts To Reduce Corrosion Risk.
Why The Part Most Commonly Fails
- Corrosion From Moisture Ingress: Poor Seals Or Cracked Lens Allow Water To Reach Contacts, Causing Oxidation And Intermittent Contact.
- Heat Damage: High-Wattage Or Faulty Bulbs Can Overheat The Plastic Socket, Leading To Melting Or Deformation.
- Mechanical Stress: Repeated Bulb Changes, Vibration Or Impact Can Break Terminals Or The Plastic Retaining Tabs.
- Wiring Wear Or Short Circuits: Chafing Against Bodywork Or Rodent Damage Can Compromise The Harness Section Leading To Failure.
- Poor Electrical Contact: Loose Or Pitted Contacts Produce Flicker Or Complete Loss Of Function.
Maintenance Tips
- Inspect Seals And Lamp Housing For Cracks When Replacing The Socket.
- Use Correct Bulb Types And Wattages To Prevent Overheating.
- Apply A Thin Layer Of Dielectric Grease To Contacts To Slow Corrosion.
- Test Circuit Voltage And Continuity Before And After Replacement To Ensure Reliable Operation.
