Description
Wiring harness for left and right rear lamp for Citroën C4 5-door, first generation. Functionality of the bulbs themselves is not guaranteed.
This rear lamp wiring harness is a practical replacement part for Citroën C4 5-door (first series) vehicles. It connects the tail light assemblies to the vehicle wiring, providing power and signal paths for brake, indicator, reverse and tail lights. The harness is commonly sought by professional mechanics and DIY enthusiasts under product codes, so listing the reference numbers below will help you find the correct part quickly. Designed for easy integration with the original lamp connectors, this harness helps restore reliable lighting function after damage from corrosion, impact or wear.
Technical Information
- Manufacturer: Stellantis / Citroën Peugeot
- Model: Citroën C4 5-door (First Generation)
- Product Codes: 6350T8, 6351T8, 6534PC
- Other Numbers: Not Specified
Compatibility And Application
Intended for use on Citroën C4 five-door models from the first series. Suitable as a direct replacement for the left and right rear lamp wiring on vehicles that use the listed product codes. Often searched by part number, so check the code match before ordering to ensure fitment.
Function
The harness routes power and signal from the vehicle wiring loom to the rear lamp clusters. It includes plug-in connectors for the individual lamp sockets and grounding conductors. A sound harness ensures consistent lighting operation for brake lights, indicators, reversing lights and tail lights and prevents intermittent faults caused by loose or corroded connections.
How To Replace
Replacement is straightforward for a competent mechanic or an experienced DIYer. Basic steps:
- Disconnect the negative terminal of the battery before starting.
- Open the tailgate and remove the interior trim panels to access the rear lamp assemblies.
- Unscrew or unclip the taillight assemblies and carefully pull them out to expose the wiring connectors.
- Disconnect the old harness from the lamp connectors and from any body grommets or clips that secure the loom.
- Route the new harness following the original path, secure it with clips or ties, and reconnect all plugs, ensuring tight and correct engagement.
- Reinstall the lamp assemblies and trim, reconnect the battery, and test all light functions before finishing.
Installation Recommendations
- Always disconnect the battery to avoid short circuits while working on lighting circuits.
- Check connector pins for corrosion and clean gently with electrical contact cleaner if needed before fitting the new harness.
- Use new grommets or rubber seals where the loom passes through the body to prevent water ingress.
- Secure the harness with clips or cable ties to prevent chafing against body edges or moving parts.
- After installation, verify operation of brake, indicator, reverse and tail lights, and inspect for any warning lamps on the dash.
Why This Part Fails Most Often
Rear lamp wiring harnesses commonly fail due to moisture ingress and subsequent corrosion at connector terminals, physical damage from impacts or trunk cargo that rubs the loom, degraded insulation from heat and age, or poor electrical contact caused by loose connectors. Rodent damage is also a possible cause in some cases. Preventative measures like replacing damaged grommets and protecting exposed sections of the loom can significantly extend service life.
Notes
This listing refers only to the wiring harness for the left and right rear lamps. The condition or functionality of the bulbs is not guaranteed. Verify that the product codes match your application before ordering to ensure correct fitment.
