Does anyone have a pic of the oil separator bellows?
 

I am curious where to find the hose for the Oil separator bellows. I had my 1128 1130 codes come on yesterday. I will clean the MAF this weekend but was curious where to find the bellows and check if that is leaking...

Also, after clearing the codes, is it normal for the car to run crappy till the DME adjusts???

Thanks!

Hi,

Here's a few links that might be helpful:

http://986forum.com/forums/showthread.php?t=5684&highlight=separator (ralegen had some good pictures)

http://986forum.com/forums/showthread.php?t=5825&highlight=separator (delirious also has a good link and some hints of his own)

http://986forum.com/forums/showthread.php?t=7233 (Blink has a write-up)

Also, after clearing the codes, in my experience, it's a normal occurence. (e.g., after I changed out all four of my O2 sensors). Maybe a few of the other folks out there can give you some input.

Anyway, good luck with that! Hope the links are helpful! :cheers:

bellow are just inside the right rear wheel. Tough to see unless the wheel is off and vehicle up on lift/stands. Find the AOS from the top side... bellows directly below. If you have had the AOS replaced once or your car is '00 or newer, the disc on the top of the AOS will be vertical not horizontal.

view from top side (courtesy of Mike Focke's pages)
http://mike.focke.googlepages.com/_D...C4808-full.jpg

shot of AOS w/ vehicle up on stands (courtesy of Mike Focke's pages)
http://mike.focke.googlepages.com/_D...C4800-full.jpg

what AOS looks like out of car: (courtesy of Mike Focke's pages)
http://mike.focke.googlepages.com/AO...parts-full.jpg

even if bellow aren't leaking, doesn't mean AOS isn't bad as it fails internally too. Pull the j-tube (connects to the throttle body) and look for more than a misting of oil.

Here are instructions on how to R&R from Mike's Focke's page:
http://mike.focke.googlepages.com/airoilseparatorreplacement

PLEASE PLEASE PLEASE listen. I DYI'd the AOS last year and did not change the bottom tube because I was told it was always the top the had the issue. Recently the car had been dumping oil on the ground. I just had a friend of mine who is a Porsche cup car mech. dig into it to find the root of the issue. After removing a ton of oil from the engine compartment we found the bottom tube had cracked and split and was indeed the issue in question. So if you do do the AOS PLEASE change that piece also. Trust me otherwise you will not drive the car and the drop another grand into finding what the problem is.

Hi,

I'm thinking about purchasing AOS items for DIY this Spring and would like to know w/c tube you are referring to?? Do you (or anyone else) have a picture of this tube? ...a part number would be very helpful as well.

Thanks in advance. :cheers:

The bellows (circled in blue below) come with a new AOS when you order part #996-107-023-04 ($76.50 last summer from Sunset). The newest j-tube (not 100% required if yours is clean) is part #996-107-145-06 ($24.22 again last summer from Sunset).

http://mike.focke.googlepages.com/AO...arts-large.jpg

Here's a link to the DIY I used for replacing mine.
Mike Focke's AOS Replacement DIY

I definitely recommend doing this a preventative maintenance. Took me under 1.5 hours to DIY at a total cost of $110 (including shipping on the parts). Dealers are known to charge $500-800 to r&r. Definitely DIY.... as long as you know how to take a wheel off and put the back end up on jack stands (not in that order though ;))

Incidentally, You can order the bellows on their own (don't have p/n). However, if you're going to all the trouble to replace them, it's in your best interest to replace the entire AOS. The bellows do fail on their own, but the bladder inside the AOS is much more likely to fail.... first.

Hey BB,
I appreciate the response...hopefully, that's the same tube that JP-in-St. Louis was referring to also.

:cheers:

It is - you're good to go.

As mentioned, it's possible to get the AOS w/out the bellows. In fact one of the previous iterations (Porsche is currently on 5th version, 4th revision based on the .04 part # ending) might not have automatically included the bellows. Not sure but could be possible.

Bellows are known to go bad on their own w/ or w/out the AOS being bad. Thus why you can buy them separately. Just order the part # I listed above and you'll have what you need (plus a dab of grease for the rings) to do the job completely.

Go to it :)

when i had those codes it ended up being a faulty MAF...
swapped that and its back to normal, although the Jtube wasnt secured good once i opened the engine compartment for the first time, so double check that, its also hard to put back in place.
Good luck

How does the plastic fastener work that connects the j-tube to the AOS? Does it twist or do you just pull it off? I've not seen a connector like that and don't want to break it.

Anyone know the answer to my question below?
Thanks.

squeeze where it's not filled in on the ring and pull outward wiggling it back and forth. Don't worry, you won't break it.

Thanks Burg