General Tech Questions Scheduled maintenance, Tune-ups Oil changes, service bulletins and other FAQs for the G37

Inside of windshield soaked

Thread Tools
 
Search this Thread
 
Old Apr 27, 2020 | 05:58 AM
  #1  
BillyTheMan's Avatar
BillyTheMan
Thread Starter
Registered Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2019
Posts: 367
Likes: 48
From: Cincinnati
Inside of windshield soaked

I got in my car this morning and it had rained the night before and the front window was wet and the wipers didn't help so I got out and tried wiping it off with my jacket but found out the inside has most of the water. The back window was the same. I made sure no windows or the sun roof was open. Any idea why my windshield would have been so wet on the inside?
Reply
Old Apr 27, 2020 | 09:11 AM
  #2  
ILM-NC G37S's Avatar
ILM-NC G37S
Registered Member
10 Year Member
iTrader: (3)
 
Joined: Apr 2014
Posts: 4,825
Likes: 1,600
From: NC
Was it actually water droplets or mist/fog? Does the car smell musty, or damp?

For the inside of the windows to have condensation (water) on them means there is moisture (water) inside the car. Could be residual moisture if it was a very humid day or if you spilled something. If there was A LOT of water, however, it could mean that you have the infamous "sunroof drain" leak problem that is becoming more common with these cars.

Here is what I suggest: Remove your floor mats and check under the rug and foam/fiber insulation (front/rear/driver/passenger) for water. If there is any water puddling at the bottom of the floorpan, your drain(s) are leaking. A search of the forum will offer more info on this topic.

IF that is the issue, it is a relatively easy fix but a real pain in the aşş to work on. And it is not a project I would put off longer than you have to.

Last edited by ILM-NC G37S; Apr 27, 2020 at 09:26 AM.
Reply
Old Apr 27, 2020 | 11:33 AM
  #3  
BillyTheMan's Avatar
BillyTheMan
Thread Starter
Registered Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2019
Posts: 367
Likes: 48
From: Cincinnati
It was definitely droplets. I never really connected the 2 but whenever it rains hard the rear driver's side floor is soaked. Come to think of it, my windows got a lot of condensation inside the car when I wash it with a hose. Could this cause electrical or mechanical damage in the long run?
Reply
Old Apr 27, 2020 | 08:10 PM
  #4  
ILM-NC G37S's Avatar
ILM-NC G37S
Registered Member
10 Year Member
iTrader: (3)
 
Joined: Apr 2014
Posts: 4,825
Likes: 1,600
From: NC
Potentially, yes. Which is why I said that this is one repair I would not put off longer than necessary. Because of where the drains pass through the firewall, there are plenty of harnesses, modules, and other electronic goodies that can get wet. Rule #1: electronics and water do not play nicely at all.

Also, you will need to get out all of that standing water that may be accumulating on the floor pan. Remember, water will always migrate to the lowest point. Allow time for everything to dry out as fully and completely as possible. You do not want the metal to start rusting nor the car to start smelling bad.

Again. the repair is not overly difficult, but it will be a chore.
Reply
Old Apr 29, 2020 | 05:24 PM
  #5  
Surfnazi's Avatar
Surfnazi
Registered Member
 
Joined: Nov 2013
Posts: 2,109
Likes: 176
prob left sunroof open on tilt
Reply
Old May 14, 2020 | 02:37 PM
  #6  
G37sPhoton's Avatar
G37sPhoton
Registered Member
 
Joined: Oct 2014
Posts: 491
Likes: 56
From: Tampa bay
yeah, if temp is cool and you had standing water inside and ran the ac, maybe the humidity condensed on inside; otherwise, water on the inside would mean rain coming sideways at ~100pmh and coming through vents.... or as Surfnazi said...tilted roof...so yeah, it seems i see more of these leak posts, and probably as its happening to mine, im actively looking for them, but also the age of the cars and some of these design flaws will be more evident etc..good luck on fix and do check out the A/C line drain bypass method, may be worthwhile doing...
Reply
Old May 19, 2020 | 12:20 AM
  #7  
DanG37's Avatar
DanG37
Registered Member
 
Joined: Feb 2013
Posts: 100
Likes: 8
You're sunroof drain(s) are clogged

BillyTheMan, I'm 99.9% sure you're sunroof drain(s) are clogged. It's something of a known issue, and it's a bugger of a job to do, to be honest.

In my situation, before even addressing the issue I first had to pull up carpets, pull out at least several gallons of water from both the passager and driver side, and run a dehumidifier overnight.

I'd recommend checking out the multiple youtube videos on this topic:
https://www.youtube.com/results?sear...+sunroof+drain
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Flakman
Car Care & Detailing
18
May 30, 2016 01:52 PM
g37scoupeallday
Body Interior Exterior Lighting
14
Mar 28, 2014 05:13 PM
cnagy65
Body Interior Exterior Lighting
27
Apr 18, 2011 12:19 PM
stevelam
Body Interior Exterior Lighting
2
Feb 24, 2010 03:38 PM
VONYC
Car Care & Detailing
27
Sep 24, 2008 12:50 AM




All times are GMT -4. The time now is 06:27 AM.