Sorry all, should have posted this weeks ago but been busy helping mum, the lift in her flats is busted so she can’t get out!
I cleaned the narrow trough the wind deflector seal sits in with cotton buds and glass cleaner (no residue).
there are 2 small (about 1 1/2” long) leaf springs (1 either side), that help push the wind deflector up into position when you open the roof, there are 2 holes in the roof cassette under each of them as well, so they got the same treatment.
the 2 coil springs (1 each side again), are a bit tricky to remove / replace but a bit of care and patience worked the 2nd time!🤦🏻♂️
I managed to drop the sides of the headliner but couldn’t release the front, so I could only reach in underneath for about 8”, I taped up the holes over the 1st 8” from each side of the car in the seal trough from underneath (bit tricky with tight access, best option I found was to use small bits of tape (about 1-2” long) on the end of 2 fingers!), then applied a generous squirt of black silicone adhesive sealant into the bits of the trough I’d taped up, refitted the leaf springs and wind deflector, (I used a couple of bits of wood to tap the seal down into the trough against the pressure of the silicone) and left it for 24hrs before testing with a watering can!
make sure the seal sits right down into the trough, as I don’t think there’s much clearance when the roof closes.
it’s worked though, no more water getting in.
hipe this helps.