Foam from the A/C deteriorating

I’m not being much help here but to say I’ve had it happen on another vehicle. Something that may have hastened the deterioration was using a spray A/C duct cleaner to rid the car’s system of a musty odor. I’ve not replaced the foam yet, but do think it is from the joints between duct sections and plenum and control doors. I also used a foaming carpet cleaner and had the spots come out more easily than I expected.

 

Yeah, I had the same thing go on...not to that extent but I've had little pieces blow out at me when the fan is on. It only happened a few times and probably more of a pain to try to fix...

 

I've just removed my heater box to fix a broken stepper motor, and the foam was quite badly broken down. The foam sits around the top of the heater box and seals against the the vent ducting. I'm guessing it's common that it breaks down, but hoping for you that once the lose bits that are inside the ducting mouth have fully broken down, you shouldn't see it continue.
It's an awful oil soaked substance, which as you said, is quite greasy and sticky.

 

That’s the super rare cs foam. How much shipped to San Antonio? Jk

I had a pc of this fall out last week.
Wondered what it was. Thx!

 

I wonder if there is a better material to replace it with. I have some white dense core weather strip from Frost King for the garage doors and it is pretty strong. Not sure it it's available in black. I bet the greasy stuff is due to the silly sticky Ferrai coating that was supposed to make the plastic more comfy. Worst idea ever from Ferrari or whatever parts supplier thought that up. A matte finish on the plastic is a much better approach.

 

Same thing happened to me, bits of the foam on the carpet that I had to use tweezers to pick up to prevent smearing.

Also, I have this habit of sometimes wiping sweat off with my shirt. After that ride in 90 degree heat in my spider I did the shirt swipe and my skin had a blue-ish substance on it. I’m thinking it was from the foam.

I couldn’t find where it was coming from though.


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That’s cavier

 

I have the same thing happening to my 2000 360. I can also hear it being chewed up by the fan. I was thinking about pulling the dash A/C vents out this weekend to try and vacuum it out. Will this work or does anyone know where its coming from or a better access point to remove it?

 

Try not to EVER park under the sun. Car's whole interior wasnt meant for that. I guess its permanently "shady" in Italy. lol!

 

Same thing here in my '03 360. A lot smaller pieces though and my car only has 26K miles on it. A nuisance to be sure. Especially with a Crema interior and light blue carpet!

I recognized it right away as my old 993 does the same thing.

 

So does anybody know where the foam is located at and a easy way to get to it?

 

The foam is located on top of the HVAC unit under the dash. Unfortunately the only way to really get to it is pull the lower dash and glovebox. You can then pull the four bolts holding the entire unit in and tilt it outwards. The foam seals the path between the HVAC unit and the dash vent tubes. This part is also NLA as far as I understand. I used the garage door foam and stacked it. Works great.
Edit: pic is the old foam.
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This supplier has pretty much any foam you could possibly want: https://www.thefoamfactory.com

 

I was just given an estimate of $4375 to have this replaced on my 2006 430 spider. Cost mainly comes from having to pull thr dash and HVAC box. I think I'm going to pass.

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My recent experience is that the foam inside the vents deteriorated. I had my vent rings refinished and when I took the 5 vents out of the dash, this is what I found.
A thin piece of foam is sandwiched between two plastic pieces to creat the open - close flap. I took one apart and they are glued together, so I didn’t pursue the idea of replacing the foam with new foam or leather. These pictures are of one good flap and one that’s split apart.
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This happened to my vents as well when I took mine out to refinish. I just ripped all the foam off and reinstalled it. There’s now a gap between the vent barrel and the flap but that’s ok, I never close the vents anyways!


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Yup. I have the same problem on my '06 f430 and my '07 Porsche 911. Drives me crazy. Both cars throw sticky foam everywhere!

 

I swear, the foam and the sticky stuff on the switches, have the same DNA.

 

@enzof355f430 which are the four bolts you have to remove to tilt out the HVAC like in your photo? Are these two of them, forward of the brake/accelerator pedals, up against the frunk? Or different ones?
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