u/patrickl96

Suzuki Swift 2006 - water ingress has been occuring from this air vent located between the rear bumper and plastic trim inside the boot, causing water to pool up inside where the spare tyre lives.

Is water supposed to be able to reach this spot, or is it meant to be sealed off? There’s also these two loose flap pieces that cover this vent but it does nothing to prevent water from getting through

In the second photo, I had sprayed the outside of the car with a hose (near the roof/top of the rear window) and water flows down, gets behind the rear bumper, and finds its way through the air vent (circled).

Water is able to get in regardless of whether the bumper is attached or not.

UPDATE:

I think I fixed it. I was able to temporarily swap over the rubber seal that the hatch closes down on with a similar (2010) Swift and no more leaks. Also if I rotate my own seal, it will leak from the other side instead. Gonna see if I can buy a whole replacement one since mine is clearly shot. I did also cover most of the air vent with a 3d printed part (silicone seal around the outside) as it did slow down how much water could make it inside the car. I left the bottom of it open so it doesn’t impede its function (being able to close doors etc and let the air pressure out easily).

Suzuki Swift 2006 - water ingress has been occuring from this air vent located between the rear bumper and plastic trim inside the boot, causing water to pool up inside where the spare tyre lives.

Is water supposed to be able to reach this spot, or is it meant to be sealed off? There’s also these two loose flap pieces that cover this vent but it does nothing to prevent water from getting through

In the second photo, I had sprayed the outside of the car with a hose (near the roof/top of the rear window) and water flows down, gets behind the rear bumper, and finds its way through the air vent (circled).