Discussion
Yes, the fuel filler neck is a brass tube, that is siliconed into the area around the boot opening, but outside the rubber seal. When it rains, water gets under the boot lid and if there is a lack of sealant under the brass flange of the filler neck, then straight into your boot.
Take a dry towel and wrap it around the rubber part of the filler neck, inside the boot.
Pour a cup of water in the area around the filler neck - it will mostly run down the boot gutter, past the rear light and onto the bumper, but some will likely soak the towel.
If so, apply any kind of silicone sealant around the brass flange and wait for it to dry!
Take a dry towel and wrap it around the rubber part of the filler neck, inside the boot.
Pour a cup of water in the area around the filler neck - it will mostly run down the boot gutter, past the rear light and onto the bumper, but some will likely soak the towel.
If so, apply any kind of silicone sealant around the brass flange and wait for it to dry!
Edited by Imran999 on Tuesday 13th August 02:54
Could it be from the wheel arch liner?
I haven’t looked at that area at all, just guessing.
I know there are two 2” diameter holes, in the boot floor, in a void behind the fuel tank, on the fuse box side. They can’t really allow water in, unless you’re driving over a sprinkler.
The fuel return line runs up in that void to the back of the fuel tank.
I actually never use my car in the rain, so I’m sorry i can’t be of more help.
I haven’t looked at that area at all, just guessing.
I know there are two 2” diameter holes, in the boot floor, in a void behind the fuel tank, on the fuse box side. They can’t really allow water in, unless you’re driving over a sprinkler.
The fuel return line runs up in that void to the back of the fuel tank.
I actually never use my car in the rain, so I’m sorry i can’t be of more help.
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