Description
Windshield washer reservoir for PEUGEOT 107 and CITROËN C1 up to 2013.
This replacement washer reservoir is designed for fast and reliable restoration of the windshield washer system on Citroën C1 and Peugeot 107 (models produced up to 2013). Ideal for professional workshops and DIY mechanics, the tank offers direct-fit compatibility with the original mounting points and makes it simple to replace a cracked or leaking unit. Common search codes such as 6405V9 and B000643380 are included for quick identification during parts lookup.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C1; Peugeot 107 (up to 2013)
- Product Codes: 6405V9; B000643380
- Additional Numbers: None listed
Function And Benefits
The washer reservoir stores windshield washer fluid and supplies it via a pump to the spray nozzles, ensuring clear visibility in wet or dirty conditions. A properly sealed and undamaged reservoir prevents leaks that can lead to low fluid level warnings, pump overheating or loss of washer function. Replacing a faulty tank restores system reliability and prevents further wear to pump and hoses.
How Replacement Is Performed
Typical replacement steps for mechanics and experienced DIYers:
- Drain remaining washer fluid into a suitable container.
- Disconnect the electrical connector(s) for the pump and level sensor, and detach washer hoses.
- Remove retaining clips or bolts securing the reservoir. On some vehicles partial removal of the front bumper or wheel-arch liner may be required to access fasteners—consult workshop manual if unsure.
- Extract the old reservoir, transfer pump and sensor if reusing, or fit new pump if required.
- Install the new reservoir, reconnect hoses and connectors, refill with appropriate washer fluid and verify pump operation and nozzle spray pattern.
When replacing the reservoir, always inspect the pump, hoses, nozzles and connectors. Replacing the tank is an efficient opportunity to replace a failing pump or cracked hoses to avoid repeat repairs.
Installation Recommendations
- Work on a cool engine and avoid spills onto hot components. Use suitable containers to collect old washer fluid.
- Label and photograph connector locations before disassembly to ensure correct reconnection.
- Check rubber grommets and seals for damage; replace them if brittle to ensure a watertight fit.
- After installation, cycle the washer system and check for leaks and correct nozzle alignment.
- Use washer fluid with frost protection appropriate for your climate to prevent freezing-related damage.
Most Common Failure Causes
- Plastic cracking from impact or long-term UV exposure—often visible as slow leaks.
- Pump seizure or electrical failure caused by running dry or contaminated fluid.
- Clogged or frozen hoses/nozzles causing increased back-pressure and premature pump wear.
- Damage from road debris or minor collisions affecting mounting points and integrity.
- Aging and embrittlement of plastic leading to sudden fractures, especially in colder climates.
Why Choose This Part
Direct-fit design for easy replacement, includes widely used identification codes for quick lookup, and is suitable for both workshop technicians and competent DIYers who want a durable solution to restore windshield washing function on Citroën C1 and Peugeot 107 vehicles.





