AudiWorld Forums - Oil caked inside turbo inlet. What could be the cause?

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mdloops

07-14-2018 05:17 PM

Oil caked inside turbo inlet. What could be the cause?

https://cimg6.ibsrv.net/gimg/www.aud...2bf8c58a5.jpeg
Car is under warranty, so I am not concerned about cost. Is this likely a seal issue or something requiring a turbo replacement?

m444	07-15-2018 10:31 AM

Quote:

Originally Posted by mdloops (Post 25179894)

...Car is under warranty, so I am not concerned about cost. Is this likely a seal issue or something requiring a turbo replacement?....

The Oil seperator (PCV) sends the blowby gases into only one of the turbo inlets, so one of them gets the residual oil.

If you your car is older, you may want to consider replacing the Oil seperator (PCV) plus the turbo oil supply screen & check valve. There is a TSB for the earlier models on this. But even some of the newer cars have needed replacement.

From ssp 920223 4.0TT engine self study:

OK https://cimg4.ibsrv.net/gimg/www.aud...612a228159.jpg

gk1	07-16-2018 06:49 AM

Quote:

Originally Posted by m444 (Post 25180150)

While true, the OP's picture with the oil in it is of the short intake tube where there is no PCV connections. I'd be worried an oil seal was about to go but I don't really know for sure.

m444	07-16-2018 08:50 AM

Quote:

Originally Posted by gk1 (Post 25180503)

While true, the OP's picture with the oil in it is of the short intake tube where there is no PCV connections. I'd be worried an oil seal was about to go but I don't really know for sure.

If the turbo oil seal is leaking, it may be due the wobbly turbo bearings, which may mean turbo replacement.

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