LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956

Had a pinhole leak on the radiator of my 2010 Volvo XC90 that only became apparent when I changed the water pump. I had thought of changing the rad out but due to needing to use the vehicle for a few jobs I decided to give this a go. It worked perfectly and stopped the leak after 5 minutes. I’d say the fix might outlast the car!

Done the job well. Top quality product

Didn't quite stop the leak entirely, but did enough to make it manageable.

I was spending about £10 a month topping up my coolant system. Used this product and very carefully followed the instructions. No more leaks.

I was Absolutely Blown Away! LIQUI MOLY Radiator Stop Leak is a Miracle Worker! Like many, I've battled stubborn car radiator leaks, trying various "miracle" products that promised much but delivered little more than frustration. My expectations were, to say the least, tempered when I decided to give LIQUI MOLY Radiator Stop Leak (150 ml) a try. And wow, am I glad I did! This product is in a league of its own. From the very first application, it was clear I was dealing with something massively superior. Within minutes, the leak, which had been a persistent headache, was completely stopped. Not just slowed, not just a temporary patch – genuinely stopped, first time. I'm incredibly impressed. LIQUI MOLY has truly engineered a formula that performs exactly as advertised, saving me the cost and hassle of potentially expensive garage repairs. If you're struggling with a radiator leak and have been disappointed by other products, do yourself a favour and get this. It's an absolute game-changer and has earned its place as a permanent staple in my garage. Highly, highly recommend!

Nothing changes

Very good item did what it says on the van

Easy to use and stopped the leak.