Hello team

 

I know the sunroof drain holes blockage has been covered, but this was my finding today that may help others.

 

Here in Melbourne, we're in summer.  Yesterday we had a storm come through, not long but torrential rain for a short while.  My car, MY16 VRS with panoramic sunroof, when moved, had water sloshing noise from what sounded like passenger side sunroof area.   It was the same this morning and very obvious.

 

So I got home, grabbed my trusty curtain wire, and had a look at the sunroof holes (only the front ones) and all seemed fairly dry.  I gave both a good cleaning anyway, then started the car and the water sloshing was still there.  Damn...

 

Then I decided to do more investigation on the doors, and blimey, this was my finding.   I had seen how the front doors, in the rubber seal, have two obvious drain holes.   The rear doors do not - they have one (near the rear of the car), but on the passenger side rear door, when I pulled the rubber away, it obviously released what was sitting in the bottom of the door, which must have been fr4om the rain yesterday (as we have had some good high 30 degree days recently and no rain for a while so anything there would have evaporated.  The images show just how much water came out once I gently pulled the bottom door seal (close to the hinges) out - it was very dirty as you'd expect but this was totally blocked.  I took pics and a video - the pics show just how much water came out of the door and the video, if it works, where it was coming from.   A massive surprise and maybe helpful to others.

 

Here's a link to the video that may help more - 

 

 

 

Andy

Had the same with mine twice now 👍

Might be worth slotting something behind the seal by the drainage hole to hold the seal away from it and provide a drainage path? 

 

The previous model Honda Civics used to suffer a similar issue but due to little one way rubber 'valves' that Honda fitted to the drainage holes.  They bunged up leading to water collecting in the doors but the solution was easier as you just took the rubber valves off. and chucked them in the bin.

Edited 8 January, 20224 yr by skomaz

We had the same issue exactly on rear left door, on our old gray O3. Not the rubber issue, but the drain holes were clogged from dirt falling near windows glass. This car was parked under the tree, so should have been expected. 
 

I suppose on annual service different additional things should be checked, including all draining routes, as a preventive measure.