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rear drains, where does the water come from?

Posted: Fri Dec 07, 2018 10:05 pm
by timrosser
Hi All,

Am I right in thinking water from the sun roof makes its way out the car down a gutter that runs down the rear metal pillar (to the side of the hatch) and out in that little pocket behind the boots plastic storage boxes?

I ask because this is the rusyest bit of my 480, and I dont have a sun roof!

Somewhat bitter ;-)

Re: rear drains, where does the water come from?

Posted: Mon Dec 10, 2018 3:25 pm
by Ortovox77
On my old 480 with sun roof I cannot remember seeing any draining holes in the list around the sun roof. From what I know the sunroof should be leak free, and I haven't had any big problems with water coming in on that car in the rear.
But on my current 480's the sealant around the rear light and the cable pass through in the top of the rear hatch leak into the back of the car.

/Jonas

Re: rear drains, where does the water come from?

Posted: Wed Dec 12, 2018 12:41 pm
by Alan 480
timrosser wrote:
Fri Dec 07, 2018 10:05 pm
Hi All,

Am I right in thinking water from the sun roof makes its way out the car down a gutter that runs down the rear metal pillar (to the side of the hatch) and out in that little pocket behind the boots plastic storage boxes?

I ask because this is the rusyest bit of my 480, and I dont have a sun roof!

Somewhat bitter ;-)
AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D

Re: rear drains, where does the water come from?

Posted: Thu Dec 13, 2018 8:46 am
by jifflemon
Alan 480 wrote:
Wed Dec 12, 2018 12:41 pm

AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D
How its gets out, is via this little hole...

Image

So, you're viewing the "pocket" from the point of the view of the airvent - Obviously, the air vent is removed. This is the drivers side.

At the front of the pocket you can see the drain hole. Underneath the pocket, you can see the plastic shelf that holds the utter evil and stupid foam pad, AKA the rust maker.

The drain hole can become blocked with dirt, that's collected in the foam pad, from dirt thrown off the road wheels and into the rear bumper area.

So, step one, remove the foam pad (its a bumper off job)
step two, make sure your drain holes are clear.

Re: rear drains, where does the water come from?

Posted: Thu Dec 13, 2018 9:44 am
by timrosser
Thanks for the tips guys, I will certainly purge the foam!

T

Re: rear drains, where does the water come from?

Posted: Thu Dec 13, 2018 12:53 pm
by Alan 480
jifflemon wrote:
Thu Dec 13, 2018 8:46 am
Alan 480 wrote:
Wed Dec 12, 2018 12:41 pm

AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D
How its gets out, is via this little hole...
At the front of the pocket you can see the drain hole. Underneath the pocket, you can see the plastic shelf that holds the utter evil and stupid foam pad, AKA the rust maker.

The drain hole can become blocked with dirt, that's collected in the foam pad, from dirt thrown off the road wheels and into the rear bumper area.

So, step one, remove the foam pad (its a bumper off job)
step two, make sure your drain holes are clear.

'can' = 'will' :wink:

I thought that you could remove the foam pad from below with a bit of brute force?

any way the drains on mine were not too clever and as they are not really at the 'lowest point' . . . . . .

Re: rear drains, where does the water come from?

Posted: Fri Dec 28, 2018 3:41 pm
by timrosser
I'm thinking of making a fiberglass 'pannel-cum funnel' to go in this area, and just chop out any of the surviving metal that may be in this area, any idea of the dimensions so I can perhaps stick it in place from the underside?

Best

Tim