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SSen100 · Posted: Fri Oct 24, 2003 1:29 am Post subject: Water Retention

I didn't drive my 924S for a few days and left it outside in heavy rain.

As I took the first few corners, I heard a sloshing noise at the front of the car. After a short journey (three left hand corners), the passenger footwell (left side in UK) was quite wet.

I opened the bonnet and found (at the windscreen end) a 'trough' with a large amount of water in it - this must have been the footwell water source.

What is that trough for - is there to gather rainwater? If so, why is it putting all the water into the footwell?! (That can't be right). Is there a drain from that trough that is blocked or something?

Smoothie · Posted: Fri Oct 24, 2003 1:38 am Post subject:

Yes - there are drains on each side. They drain forward into the engine compartment and they get clogged with leaves and whatever else. They're approx. 3/4" in diameter - short tubes with rubber flaps on the ends. Find them and poke 'em with a stick 'til they're clean.
Obviously, you also have a leak/s in that area too. Often it's rust near the battery. If you're lucky like me, it might only be old cracked seam sealer and a little surface rust that needs to be scraped, cleaned, rustproofed and resealed.

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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

SSen100 · Posted: Fri Oct 24, 2003 4:44 am Post subject:

Smoothie · Posted: Fri Oct 24, 2003 5:44 am Post subject:

Roger · Joined: 06 Jan 2003 Posts: 1235 Location: Cordova, TN

On my 81 there is one more drain that is on the drivers side in the inside corner of the drain tray underneath the wiring for the windsheild wiper motor.
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1981 924 NA

Some people are like Slinkies. Not really good for anything, but you
still can't help but smile when you see one tumble down the stairs.

CBass · Joined: 03 Nov 2002 Posts: 2807 Location: Vancouver, Canada

If you're not lucky, you end up with half a square foot of sheet metal that has to be cut out, and large sections that need to be removed from firewall.

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'81 931 in various states of assembly

Zak · Joined: 21 Jul 2003 Posts: 11

I had the same problem. It came from a rusted through spot that drained into the passanger foot compartment. The hole was about 2" wide by 3". I resolved to using fiberglass and bondo to cover the hole. After that I sprayed the area with underbody coat to make it black. It resulted in the car reaking of underbody coat for a few weeks. It solved the problem, and because of the spray most people can't tell that anything has been done to that area.

I would suggest you at least take the battery out and make sure that you don't have a rust hole, or one developing.

Edit: I used the firberglass mesh, for intergrity, then packed bondo on it.

CBass · Joined: 03 Nov 2002 Posts: 2807 Location: Vancouver, Canada

I'm going to do a proper job and weld it when I have the engine out, probably weld in some extra bracing along there firewall too, try to prevent any future cracking.
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'81 931 in various states of assembly

SSen100 · Posted: Mon Oct 27, 2003 7:13 pm Post subject:

jts924s · Joined: 16 Aug 2003 Posts: 52 Location: Littleton, CO