Originally Posted by
Valk
Water usually penetrates the trunk though the seal around the wing on all the SRT's
On the regular Roadsters it can be due to a slight separation of the glass on the convertible top but also possibly the seal on the wing itself.
Also note there is a rubber drain plug below the central locking module in the base of the trunk
It is advised to remove this drain plug and leave it out so any water that might get in there again cant fill the area up

Sachin, along with what Valk said, there is also quite a few members who had their fuel fill seal open some which let water run into the inner bay below the hatch area. The grommet Valk was talking about (there is actually two, one on each bay side), it is forward of the underside bays near where the bay compartment rolls up where it meets the body (rearward of the diff/axles). I never completely removed the grommets, didn't want the possibility of rodents or debris (including water) so I just sliced an "X" into each of the two and poked a larger than small Phillip's screwdriver shaft through it. The "X" splits and will not (not yet anyway) allow this hole to completely seal. Never had a drop in there (but I haven't yet had those seals mentioned have a leakage issue, fingers crossed). Good luck with your 'repaired' pump unit, and to you finding the source/fixing it.
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