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2012 Lexus GS350 Sunroof Leak

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Old 10-07-21, 05:41 AM
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ZainGS
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Default 2012 Lexus GS350 Sunroof Leak

Hi all,
Decided to go to a touch-less car wash and noticed that water started to drip from the back of the sunroof, both sides.
Anyone know what could be the issue and how to resolve it.
Attached below is a video.
Old 10-07-21, 06:48 AM
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GSJ350
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Originally Posted by ZainGS
Hi all,
Decided to go to a touch-less car wash and noticed that water started to drip from the back of the sunroof, both sides.
Anyone know what could be the issue and how to resolve it.
Attached below is a video.
https://www.youtube.com/watch?v=xszMYtIs6D0
Well the sunroofs are designed to leak by design, this is why there are drain holes below where the dripping is occuring. Its hard for a horizontal seal to be 100% water proof but if that seal has never been replaced, get some silicone spray lubricant and spray it on a rag then apply generously all over the seal. It will breath new life into it and make it supple and swell up to create a better seal. Do you get wind noise coming from that area driving down the highway?
Old 10-11-21, 09:09 PM
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ZainGS
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Originally Posted by GSJ350
Well the sunroofs are designed to leak by design, this is why there are drain holes below where the dripping is occuring. Its hard for a horizontal seal to be 100% water proof but if that seal has never been replaced, get some silicone spray lubricant and spray it on a rag then apply generously all over the seal. It will breath new life into it and make it supple and swell up to create a better seal. Do you get wind noise coming from that area driving down the highway?
I haven't tested for wind noise driving down the highway. I've just purchased the vehicle couple of months ago but I reckon it had not been replaced ever. Also I just visited a sunroof shop and they tested all the drain holes and all clear, then they tested the seal and they have suggested a new seal is required.
Old 10-12-21, 03:51 AM
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claarn
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I just did the seal a few months ago. Simple 30min job. Watch here how to do it…
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