Product: Windscreen Washer Bottle Tank Cover Cap M103710000 Compatible with: Citroen C4 model years 2004–2015 Key benefits Restores a secure, leak seal on the windshield washer reservoir to prevent fluid loss and keep the washer system working reliably Durable plastic construction resists wear, remains flexible, and tolerates accidental drops for long service life Molded identification mark (watermark) makes it easy to locate and confirm the correct replacement cap What this part does Seals the washer fluid reservoir to prevent leaks and contamination Helps maintain proper operation of the washer pump and spray system by keeping fluid contained and clean Easy to remove and install for fast maintenance or replacement Main features Compatibility: Citroen C4, model years 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Part number: M103710000 Material: quality plastic — leakproof, flexible, impact resistant, and wear resistant Marking: Molded watermark for quick identification when servicing or replacing the cap Simple installation 1. Remove the old washer reservoir cap 2. Position the cap M103710000 onto the reservoir opening 3. Press in place until properly seated and sealed to avoid leaks Practical use scenarios Routine maintenance: a cracked or brittle cap during scheduled service to prevent fluid evaporation and contamination Postaccident : a damaged cap after a minor impact to restore a proper seal and avoid washer system failure Fluid up or inspection: Use when topping up washer fluid or preparing the vehicle for inspection to ensure a secure closure Why choose this cap Directfit compatibility with Citroen C4 2004–2015 ensures correct fit and function Robust material and simple installation reduce downtime and followup repairs Clear identification mark simplifies parts matching and future replacements Included One washer reservoir tank cover cap M103710000 for Citroen C4 (2004–2015) Notes Confirm vehicle model year and part number before to ensure proper fit Ensure cap is fully seated after installation to prevent leaks and maintain washer system performance