Description
Third rear brake light for Citroën C4, C4 Cactus, DS4, C5 X7. Before purchase, make sure that the vehicle does not have a damaged supply cable. Tested fully functional.
Product Description
This centre high-mount stop lamp (third brake light) is a direct-fit replacement unit designed for Citroën passenger cars listed below. It restores rear signalling visibility and brake light compliance, improving safety during braking and reducing the risk of rear-end collisions. The unit matches original Stellantis mounting points and electrical connector layout for straightforward replacement.
Compatibility
Compatible Models: Citroën C4 I, Citroën C4 II, Citroën C4 Cactus, Citroën DS4, Citroën C5 X7. Always check the part numbers against your vehicle equipment level and production year to ensure correct fitment.
How To Replace
Replacement is suitable for experienced DIYers and professional garages. General procedure: remove interior tailgate/boot trim to access the lamp assembly, undo retaining screws or fasteners, disconnect the electrical connector, remove the old lamp and clean the mounting area, fit the new lamp and secure with original fasteners, reconnect the wiring and test all light functions (brake, tail, and any integrated LED functions). Ensure sealing surfaces are clean to prevent water ingress. Before starting, disconnect the vehicle battery to avoid short circuits or electrical damage.
Most Common Failure Reasons
Typical causes of failure include water ingress and corrosion of contacts, damaged supply cable or connector, mechanical impact to the rear hatch, and internal LED or filament failure. Wiring abrasion or poor sealing around the tailgate can accelerate failure. Regular visual inspection of the connector and seal can prevent premature issues.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C4 I / C4 II / C4 Cactus / DS4 / C5 X7
- Product Codes: 9646804580, 6350V2, 6351HH, 6351EY
- Other Numbers: 6350.V2, 6351.EY, 6351.HH
Installation Recommendations
Use original-style fasteners and avoid over-tightening to prevent cracking the housing. Check the condition of the wiring harness and replace any brittle or corroded terminals. After installation, verify operation of the brake light from inside the vehicle and with an assistant outside, and ensure the tailgate closes without pinching the cable. If unsure about access or connector condition, have the replacement performed by a professional technician.
