Used Third Brake Light Citroën C1 Peugeot 107 1606372780

Thu, 02 Oct 2025 02:00:56 +0000

Third rear brake light with washer nozzle for Citroën C1, Peugeot 107 and Toyota Aygo. This is a used part; the rubber gasket does not seal and must be glued with silicone.

This high-mounted stop lamp with an integrated washer nozzle is a direct-fit replacement for many Citroën C1 and Peugeot 107 models (also fitted to Toyota Aygo). Supplied as a used unit, it restores brake-light visibility and rear-window washing functionality in a single component. Ideal for auto technicians and DIY enthusiasts looking for a cost-effective repair using original-style equipment. Search keywords: third brake light, high-mounted stop lamp, rear washer nozzle, 1606372780, 6351W4, Citroën C1 brake light, Peugeot 107 brake light.

Technical Information

Manufacturer: Stellantis
Model(s): Citroën C1, Peugeot 107, Toyota Aygo
Product Codes: 1606372780, 6351W4
Other Numbers: 1606372780

Function And Benefits

The unit combines the third brake light (high-mounted stop lamp) with a rear-window washer nozzle. It improves visibility to following traffic during braking and keeps the rear glass clear when the washer circuit is activated. Using an original-style component ensures correct fitment, alignment, and reliable operation with the vehicle wiring and washer tubing.

Installation Recommendations

Before starting the replacement, follow standard workshop safety procedures. Disconnect the battery or isolate the electrical system to avoid short circuits while working on lighting connectors. Typical replacement steps:

Open the rear hatch and remove the interior trim panel to access the light assembly.
Disconnect the electrical connector and the washer hose from the nozzle (have a small container ready for residual fluid).
Remove the retaining screws or clips and extract the old unit from the hatch.
Clean the mating surface thoroughly; remove old sealant and debris.
Because this is a used unit with a non-sealing rubber gasket, apply a continuous bead of automotive-grade silicone sealant to the contact surface before fitting to ensure watertight installation.
Refit the unit, reconnect the washer hose and electrical connector, secure all fasteners, then test the brake light and washer operation before reassembling the trim.

Why This Part Fails Most Often

Common failure causes include degraded or torn rubber gasket leading to water ingress, cracked or UV-damaged lens, impact damage from rear collisions, or blocked/faulty washer nozzle. Corrosion at the electrical connector or contamination of the washer hose can also impair function. In this specific unit the rubber sealing is compromised and requires resealing with silicone to prevent leaks.

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