Wilmo's right, theirs loads of threads concerning this matter. I am in the same situation, it can be a long process finding the culprit. Mine wants to be the local swimming baths at the moment. The hunt begins this weekend..Hi all. I washed the car noticed the spare wheel section of my wifes civic was drenched. Im no mechanic but is there anyone in the midland in leicester or near who knows how to fix this please? Or can come to kine or i can take the car to you?
I did the same with one of the rear light clusters that had water in it, been fine since 👍🏻didn't have leaky boot but water had got into the spoiler on mine, could hear it sloshing about when i moved the tailgate.
easy solution was to take it off and drill a small hole at the lowest point on each side, no problem since then and holes are out of sight anyway.