Slickdvl

This is the charge pipe correct? One in same size on driver side and passenger side? Is there supposed to be a ton of oil in there? This is passenger side, bottom right above the air dam into the wheel well and to the right of radiator

dbv1

I'm not sure where the charge pipe is but on turbo cars, it's normal for some oil to collect in the intake, usually in lowest parts (intercooler). It has to do with the emissions and recirculation of the oil vented from the crankcase into the intake. Again, I'm not sure if that's what you're seeing.

deilenberger

Have you drained it? If there is appreciable oil, it would be helpful to know the year of your turbo. The early 2011's had an issue with oil use - caused by a defective design on the air/oil separator. Porsche redesigned it in late 2011 and quietly issued a service bulletin calling for it to be replaced with the new design when cars came in for service. It's possible (probable actually) that some were missed. Luckily the separator is easy to replace and fairly inexpensive. The new design eliminated oil burning and oil buildup in the drivers side intercooler and pipes.

Slickdvl

2012 CTT, there was a lot - I’m gonna drain both sides - this was actually the passenger side. 100k on car and not sure it was ever done before
know the part? I was actually thinking I need to change my diaphragm or get the whole cap combo - but if there is a redesign I’ll get that.

i see the following online:
94810713522
previous:
94810713520
94810713521
wonder if I can find the number somewhere visible on mine

Slickdvl

Ordered the 22 one today - might as well

deilenberger

The diaphragm isn't available for the 958 V8's since the actual AOS is available for a reasonable price and doesn't require replacing the valve cover (whatever IDIOT designed that on the 955/957 V8 should be drawn and quartered..) It's simple to change. A few bolts and it's done.

BTW - your 2012 may have an engine built in 2011 - not uncommon for early 2012's to have been built in September 2011.

Slickdvl

Yep, 4 bolts and 2 gaskets - I recently put it back on when doing the intake manifold, didn’t read the number on the bottom unfortunately

Slickdvl

Is there a way to find that info out? I didn’t look at the variocam bolt for that reason - and dealership says no recalls

deilenberger

I don't know of any build date by VIN# - especially for engines. You can determine the build date of the car itself by VIN# - but engine? Not that I know of. Have to checked the variocam bolts yourself? Easy to do..

Slickdvl

Good point on the variocam - I’ve got a dental mirror handy after buying a kit to clean my intake valves

Slickdvl

Uh oh
Prod Month:2011-10-01

deilenberger

You should check the Variocam bolts. October is in the questionable time..

Slickdvl

Just checked, it’s the new one - phew.

deilenberger

PTEC

If you take a look at the design of the crankcase breather system for the cayenne turbo you will see the oil vapor (when the intake is pressurized) is only routed to the bank 2 side of the engine. It is 100% normal to see on that side with leaking oil. As mentioned it is the lowest point so naturally all the oil that sticks to the side of the pipes and inside the intercooler drains down and collects there. Its my theory that the ones that accumulate oil in this area are driven more aggressively because you weren't under boost a lot the car would not be using this path for ventilation, it would be using the normal path, ie straight into the intake manifold.