# Buy Cooling System Leak Stop 325ml at Autoservice ## WYNN'S Cooling System Leak Stop 325ml for small radiator leaks Oil & Additives / Additives / For radiator Effective solution for small leaks in the cooling system, with anti-corrosive protection. ## Prices and stock - **WYNNS 45641**: € 13,30 incl. VAT (was € 16,09) — 17% discount — 7 in stock ## Order URL [WYNN'S Cooling System Leak Stop 325ml for small radiator leaks](https://www.auto-service.be/en/oil-additives/additives/for-radiator/wynns-cooling-system-leak-stop-325ml) ## Alternate URLs - **nl**: [WYNN'S Cooling System Leak Stop 325ml for small radiator leaks](https://www.auto-service.be/nl/olie-additieven/additieven/voor-radiator/wynns-koelsysteem-lek-stop-325ml-wynns-45641) - **fr**: [WYNN'S Cooling System Leak Stop 325ml for small radiator leaks](https://www.auto-service.be/fr/huile-et-additifs/additifs/pour-radiateur/wynns-systeme-de-refroidissement-anti-fuite-325ml) - **en**: [WYNN'S Cooling System Leak Stop 325ml for small radiator leaks](https://www.auto-service.be/en/oil-additives/additives/for-radiator/wynns-cooling-system-leak-stop-325ml) ## Images - ![Product image](https://www.auto-service.be/assets/media/5386/conversions/koelsysteem-lek-stop-325ml-163217-optimized.jpg) ## Specifications - **Reference**: WYNNS 45641 - **EAN**: 5411693456411 - **Brand**: WYNN'S ## Product description ### Effective solution for small leaks Small leaks in the cooling system can lead to overheating and engine damage. WYNN'S Cooling System Leak Stop offers a quick and efficient way to address these issues. This additive seals small leaks in the radiator and cooling system, preventing further damage. ### Protection against corrosion and rust In addition to sealing leaks, this product provides enhanced protection against corrosion and rust. It helps extend the lifespan of the cooling system by reducing harmful deposits and protecting internal components from wear. ### Compatibility with various coolants WYNN'S Cooling System Leak Stop is compatible with all types of antifreeze and coolants, including OAT coolants (Organic Acid Technology). This makes it suitable for a wide range of vehicles and cooling systems. ### Safe for system components This additive is harmless to rubber hoses, gaskets, and other parts of the cooling system. It does not clog hoses and does not repair split or broken hoses, thus maintaining the integrity of the system. ### Easy to use - **Preparation**: Check the coolant level and start the engine. Let it reach operating temperature with the heater set to 'warm'. - **Application**: Shake the bottle well and add the entire contents to the cooling system via the radiator cap or expansion tank. - **Finishing**: Close the system and let the engine run for about 10 minutes until the leaks are sealed. ### Suitable for various engines This product is suitable for all water-cooled systems of petrol, diesel, and LPG engines. It can be used both curatively and preventively to maintain the efficiency of the cooling system. ### Content and treatment capacity One 325 ml bottle is sufficient to treat cooling systems up to 12 liters. For larger systems, an adjusted dosage may be required. ### Recommended additional cleaning For a heavily contaminated cooling system, it is recommended to first clean with WYNN'S Cooling System Flush. This ensures optimal performance of the leak stop and the entire cooling system. ### Important considerations - **Not suitable for**: Repairing split or broken hoses. - **Compatibility**: Works with all types of coolants, including OAT. - **Safety**: Harmless to all components of the cooling system. With WYNN'S Cooling System Leak Stop, you ensure a reliable and long-lasting solution for small leaks, while protecting the cooling system against corrosion and rust. ## Breadcrumbs - [Oil & Additives](https://www.auto-service.be/en/oil-additives) - [Additives](https://www.auto-service.be/en/oil-additives/additives) - [For radiator](https://www.auto-service.be/en/oil-additives/additives/for-radiator) ## Related products - [Bardahl Radiator Cleaner 500ml for effective cooling system cleaning](https://www.auto-service.be/en/oil-additives/additives/for-radiator/bardahl-radiator-cleaner-500ml) - [Bardahl Radiator Stop Leak 500ml for quick sealing of coolant leaks](https://www.auto-service.be/en/oil-additives/additives/for-radiator/bardahl-radiator-stop-leak-500ml) - [Bardahl Radiator Stop Leak 300ml for quick sealing of coolant leaks](https://www.auto-service.be/en/oil-additives/additives/for-radiator/bardahl-radiator-stop-leak-300ml) - [WYNN'S Cooling System Degreaser 325ml for effective cleaning](https://www.auto-service.be/en/oil-additives/additives/for-radiator/wynns-cooling-system-degreaser-325ml) - [WYNN'S Cooling System Cleaner 325ml powerful acid-free radiator cleaner](https://www.auto-service.be/en/oil-additives/additives/for-radiator/wynns-cooling-system-cleaner-325ml) ## Webshop catalogue - [Car Cleaning](https://www.auto-service.be/en/car-cleaning) - [Exterior](https://www.auto-service.be/en/car-cleaning/exterior) - [Car Shampoo](https://www.auto-service.be/en/car-cleaning/car-shampoo) - [Interior](https://www.auto-service.be/en/car-cleaning/interior) - [Leather upholstery](https://www.auto-service.be/en/car-cleaning/leather-upholstery) - [Rims & tires](https://www.auto-service.be/en/car-cleaning/rims-tires) - [Polishing](https://www.auto-service.be/en/car-cleaning/polishing) - [Windows](https://www.auto-service.be/en/car-cleaning/windows) - [Wax & protect](https://www.auto-service.be/en/car-cleaning/wax-protect) - [Scratch treatment](https://www.auto-service.be/en/car-cleaning/scratch-treatment) - [Accessories](https://www.auto-service.be/en/car-cleaning/accessories) - [Kits](https://www.auto-service.be/en/car-cleaning/kits) - 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