Description
3rd rear brake light for Citroën C5 I and II Estate. The part has been tested: 5 LEDs do not light, LEDs flash intermittently; the part is usable.
This high-mounted third brake light (CHMSL) is designed for Citroën C5 first and second generation estates (Kombi). It improves rear visibility under braking and is a common replacement part for workshops and DIY mechanics. The unit is often searched by part number 6350P6 and is referenced within Stellantis Citroën/Peugeot spare-part listings.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C5 I (Estate) / Citroën C5 II (Estate)
- Product Codes: 6350P6
- Other Numbers: NFP
Function And Typical Symptoms
The third brake light provides a central, elevated brake signal to following traffic. Typical failure symptoms include dimming, individual LEDs not lighting, intermittent flashing, or complete loss of the brake signal. In this specific unit five LEDs are not functioning and remaining LEDs are flashing intermittently, but the assembly can still be used depending on legal and safety requirements.
How To Replace
Replacement is straightforward for experienced mechanics and competent DIYers. Basic steps:
- Disconnect the negative battery terminal to avoid short circuits.
- Open the tailgate and remove the interior trim panel using plastic trim tools to avoid damage; retain clips and screws.
- Locate and remove the mounting screws or bolts securing the brake light housing.
- Unplug the electrical connector carefully and release any retaining clips.
- Fit the new or replacement assembly, connect the electrical plug, secure the housing, and reassemble the trim.
- Reconnect the battery and test the brake light operation, including brake pedal activation and hazard/indicator interaction.
Installation Recommendations
- Use plastic trim tools to prevent damage to interior panels.
- Inspect connector pins and wiring for corrosion; clean contacts and apply dielectric grease if appropriate.
- Ensure a watertight seal when refitting to prevent future moisture ingress.
- Check that the light output meets local regulations; if multiple LEDs are out, consider replacement for road-legal compliance.
Why This Part Commonly Fails
LED brake light assemblies can fail for several reasons: water ingress and condensation that cause corrosion of contacts or printed circuit traces; impact damage from tailgate closures or minor collisions; broken solder joints or failing internal LED drivers due to vibration and thermal cycling; and general aging of electronic components. Intermittent flashing typically indicates loose connections or failing driver electronics rather than all LEDs failing at once.
This replacement is commonly performed during bodywork repairs, after tailgate damage, or when persistent moisture or electrical faults are detected. Search by part number 6350P6 for faster identification in parts catalogs and listings.
