“The overflow tank turned up in the mail no worries. Compared it to what was fitted to my 2010 JB Kia Rio, it's an exact match... except for the leak in my original tank. Checked under the filler cap and the seal was all out of shape and looked like it had been sitting in the wrong shape for a while so wasn't gonna easily return to correct shape or seal properly. Grabbed the cap off my old overflow tank with a working seal which fits fine. All good now with a properly working overflow tank.”
