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How Much to Replace Air/Oil Separator?


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I've been having a pretty consistent big puff of "White Smoke" on startup lately,

eventhough the car's not been pushed hard prior to the last shutoff.

The smoke clears up in seconds, and no signs of it till the next startup.

Usually the ones that occur after a hard run would quit after a few days to a week, but this one's been stubborn.

And the engine sometimes stumbles at startup, and needs a second try.

Or it would stumble at startup idle until it "catches" and the rpm suddenly shoots up to where it's supposed to be.

Anyway, I'm suspectiing it could be the Air/Oil separator.

Called my independent mechanic, and he said if it was, that would be about a $900plus job!

He said being a Tiptronic, it would need about 8hrs labor (2hrs more than a manual), and the part itself is only about $100+.

Anyone done this before, and has any idea what the job costs?

Is a DIY too complicated?

Thanks! :cheers:

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I've been having a pretty consistent big puff of "White Smoke" on startup lately,

eventhough the car's not been pushed hard prior to the last shutoff.

The smoke clears up in seconds, and no signs of it till the next startup.

Usually the ones that occur after a hard run would quit after a few days to a week, but this one's been stubborn.

And the engine sometimes stumbles at startup, and needs a second try.

Or it would stumble at startup idle until it "catches" and the rpm suddenly shoots up to where it's supposed to be.

Anyway, I'm suspectiing it could be the Air/Oil separator.

Called my independent mechanic, and he said if it was, that would be about a $900plus job!

He said being a Tiptronic, it would need about 8hrs labor (2hrs more than a manual), and the part itself is only about $100+.

Anyone done this before, and has any idea what the job costs?

Is a DIY too complicated?

Thanks! :cheers:

Cosmos:

To get a rough idea of what the job entails, check out the procedure as it applies to Boxsters as it also contains some very useful tips that will save you time and frustration if you decide to DIY on your C4S (e.g., cut the old bellows in half... buy the additional ancillary parts..., etc.).

Here's the link to Mike Focke's Boxster Pages AOS replacement: http://mike.focke.googlepages.com/airoilseparatorreplacement

Regards, Maurice.

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Thanks Maurice!

I think it's much easier on the Boxster than it is on the 996....?

I've been told the dealer pulls the engine for the A/O separator job on a 996.

I hear you can pull out the airbox, intake, plenum etc...and have a tight acces to the AOS. To get to the bellows you have access from the rear (tight access as well) but can be done... I think its a harder than replacing the coolant reservior, but similar type of fiddling.

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