Founding Member Mazda Man Posted February 7, 2018 Founding Member Report Share Posted February 7, 2018 If you remember, last Sunday it rained all day, I was a little concerned as when I was diving I felt a drip of water hit my arm. I looked up and saw this..... You can imagine how distraught I was! I picked up the Bat Phone and called Stu, I then popped over the following day for the diagnosis. There could be two reasons why water is getting into the cabin; 1) The sunroof drain hole (or the channel) could be blocked. This wasn’t the case as Stu emptied some water down the channel and it exited by the wheel. 2) It’s getting in via a seam on the A pillar. Stu remover the trim and was greeted with a great big lump of silicone sealant at the end of the channel on the corner of the windscreen!! Mystery solved. Stu said the channel should be clear to allow water to exit. What the blob of sealant was doing was blocking the channel creating effectively a little lake of water. The top windscreen trim has sponge on the back and this was saturated as the water has nowhere to go. Anyway, the silicone had no chance! Stu blasted it with brake cleaner to shrink it and cleared it all out. A small bit of paint had gone and the water was getting in via the seam. He then used some clever sealant to fix the leak and left it to dry for a while. Whoever tried to fix this previously had also pulled the trim at the end causing a crack, instead of lifting it properly in the middle. That’s something to fix in the summer. It’s not rained since but I’m pretty sure it’s now water tight again, thanks to Stu. 2 1 Link to comment Share on other sites More sharing options...
Administrators hughezee Posted February 7, 2018 Administrators Report Share Posted February 7, 2018 The first picture doesn't do justice to the previous persons effort, although I have seen this sort of overzealous use of silicone sealant before somewhere. 3 Link to comment Share on other sites More sharing options...
Moderators Laird_Scooby Posted February 8, 2018 Moderators Report Share Posted February 8, 2018 Silicone sealant is good stuff but usually "less is more" when using it. 2 Link to comment Share on other sites More sharing options...
Founding Member Mazda Man Posted February 8, 2018 Author Founding Member Report Share Posted February 8, 2018 It was rammed in there Dave, effectively blocking the channel that allows rain water from the roof rail etc to escape. It was basically a little silicone dam preventing rain water escaping. This caused a little pool to accumulate and saturate the area causing water ingress on the seam. I can hear it chucking down outside so this will be the test to see if it’s now waterproof in the morning when I go to work. 3 Link to comment Share on other sites More sharing options...
Moderators Laird_Scooby Posted February 9, 2018 Moderators Report Share Posted February 9, 2018 As the bee said when it flew head-first into the brick wall across the river, Dam! 2 Link to comment Share on other sites More sharing options...
Administrators hughezee Posted February 9, 2018 Administrators Report Share Posted February 9, 2018 As I feared the leak has returned, further investigation required. 1 2 Link to comment Share on other sites More sharing options...
Moderators Laird_Scooby Posted February 9, 2018 Moderators Report Share Posted February 9, 2018 Badly adjusted sunroof panel or dry sunroof seal perhaps? Some silicone grease on the seal will help but you know that already Stu! 2 Link to comment Share on other sites More sharing options...
Founding Member Mazda Man Posted February 9, 2018 Author Founding Member Report Share Posted February 9, 2018 2 Link to comment Share on other sites More sharing options...
Founding Member Mazda Man Posted February 10, 2018 Author Founding Member Report Share Posted February 10, 2018 Arghhhh. Blooming rain all day, want to get the wax out! On a positive note, there was little or no water ingress when I got in this morning. Hmm? On another positive note, thanks to the rain, at least the rain sensing wipers work a treat. 3 Link to comment Share on other sites More sharing options...
Founding Member Mazda Man Posted February 11, 2018 Author Founding Member Report Share Posted February 11, 2018 As a temporary measure, I have stuck a length of black electrical tape along the top of the windscreen. It’s hardly noticeable, I overlapped about 5mm onto the paint and made sure it stuck properly. This should stop water entering the top of the windscreen for the time being. Just looked outside and it’s snowing. 2 Link to comment Share on other sites More sharing options...
Moderators Laird_Scooby Posted February 11, 2018 Moderators Report Share Posted February 11, 2018 Be interesting to see if that stops your leak Geoff! As for the pre-frozen rain, i prefer the fresh stuff! 1 Link to comment Share on other sites More sharing options...
Founding Member Brett Posted February 11, 2018 Founding Member Report Share Posted February 11, 2018 Just a thought Stu this is not the same problem as the 8th gen Accords suffer is it. I no the trims lift and need reseating on the Accord but not sure if they leak. touch wood mine is fine on my car. 1 Link to comment Share on other sites More sharing options...
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