S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

very slow oil leak when car is parked for a few days, think it may be the oil return line...

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Old 12-31-2008, 06:30 AM
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Default no prob, take your time.

don't sway bars require something special when pulling as they are under load or something like that? i was already cursing the car yesterday just lying underneath looking at the line; i can only how cramped it'll be when i'm actually working on it.
Old 12-31-2008, 06:34 AM
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Default ...

<img src="http://pictureposter.audiworld.com/38996/11-06-08_002.jpg">
Old 01-06-2009, 04:36 PM
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Default Looks like you need: "seal gasket" N 906 132 01. Can somebody check this please?

I got it from ETOS on a 1999 european spec S4. This is the only piece of software that I have. You may be able to double-check on the online VAG catalogue site.

Here is my search showing all kinds of matches.

http://www.vagcat.com/find/?art=N+906+132+01

I hope this helps. I am going to replace that on mine in about 2k miles. If you can wait until then I will have THE part number for you.
Old 01-07-2009, 02:22 PM
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Default wow, thanks much for getting back to me.

i can definitely wait as I'm in no rush to do the oil. i also have a b5 1.8t that I drive more regularly so I don't put many miles on this one.

thanks again and keep me updated. i hope it's the correct one so you don't find out the hard way (mid-install).

take care!
Old 02-05-2009, 08:25 AM
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Default update:

i've found that if i drive the car every few days or so, the oil doesn't leak out.

i have a b5 A4 which does the brunt of my driving and so the S4 sits in the garage most of the time and is taken out rarely. it seems that the longer that it sat, the more the oil leaked. so now i just take it out more often for errands and such, and haven't seen a drop since. i will definitely change the o-ring at the next oil change though.

have you got around to yours yet?
Old 02-05-2009, 01:28 PM
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Default Still have about 2k miles to go and...

I just got a B5 A4 grocery-getter as well. I will not drive the S4 any less, but I do not drive it much in the first place -- a lot like you.

When I change the o-ring, you will know, I promise.

I do not think you need to worry about leaking oil when it sits there or not. You will not leak enough to have a problem. If that were the case, you would have already made the repair... I am also guessing that you are leaking just as much driving or not, it is just that when you drive that drip of oil may just get carried away and coats the sway bar, on which dust gets deposited, and so you do not see wetness. But there is no reason why it would leak less when the car is driven.

Do not worry about it. A small leak in the oil return line is the least of your worries with this car!
Old 02-06-2009, 03:59 AM
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Default very good point

i guess i didn't think about the drips being dropped somewhere else.

and you're right, it really isn't a lot of oil at all, i just get frustrated having to clean it off of the ground
Old 03-28-2023, 10:57 AM
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My car was leaking oil when parked and i am very concerned then i read this article which help me a lot and save me from costly repair. Read Here
Old 01-06-2024, 09:05 AM
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very slow oil leak when car is parked reasons and quick fix. Read Here
Old 03-05-2024, 02:06 PM
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Originally Posted by maggio
130k. not sure if/when those have been serviced.
you should get a maintenance service and change whatever you need to change.
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